Home / 912,941.20-1,369,411.80-344,234.80

Finding the Fourth Proportional to 912,941.20, 1,369,411.80 and 344,234.80

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Solution

The fourth proportional to 912,941.20, 1,369,411.80 and 344,234.80 is: 516,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,941.20 : 1,369,411.80 = 344,234.80 : x
  2. Step 2: Convert to fraction form
    912,941.20/1,369,411.80 = 344,234.80/x
  3. Step 3: Cross multiply
    912,941.20x = 1,369,411.80 × 344,234.80
  4. Step 4: Simplify right side
    912,941.20x = 471,399,197,090.64
  5. Step 5: Solve for x
    x = 471,399,197,090.64/912,941.20
  6. Step 6: Final answer
    x = 516,352.20

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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.