Home / 1,269,596,314.80-1,904,394,472.20-349,614,644.40

Finding the Fourth Proportional to 1,269,596,314.80, 1,904,394,472.20 and 349,614,644.40

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Solution

The fourth proportional to 1,269,596,314.80, 1,904,394,472.20 and 349,614,644.40 is: 524,421,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,596,314.80 : 1,904,394,472.20 = 349,614,644.40 : x
  2. Step 2: Convert to fraction form
    1,269,596,314.80/1,904,394,472.20 = 349,614,644.40/x
  3. Step 3: Cross multiply
    1,269,596,314.80x = 1,904,394,472.20 × 349,614,644.40
  4. Step 4: Simplify right side
    1,269,596,314.80x = 665,804,196,195,528,704
  5. Step 5: Solve for x
    x = 665,804,196,195,528,704/1,269,596,314.80
  6. Step 6: Final answer
    x = 524,421,966.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.