Home / 1,019,215.80-1,528,823.70-261,055.80

Finding the Fourth Proportional to 1,019,215.80, 1,528,823.70 and 261,055.80

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Solution

The fourth proportional to 1,019,215.80, 1,528,823.70 and 261,055.80 is: 391,583.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,215.80 : 1,528,823.70 = 261,055.80 : x
  2. Step 2: Convert to fraction form
    1,019,215.80/1,528,823.70 = 261,055.80/x
  3. Step 3: Cross multiply
    1,019,215.80x = 1,528,823.70 × 261,055.80
  4. Step 4: Simplify right side
    1,019,215.80x = 399,108,294,062.46
  5. Step 5: Solve for x
    x = 399,108,294,062.46/1,019,215.80
  6. Step 6: Final answer
    x = 391,583.70

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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.