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Finding the Fourth Proportional to 591,787.80, 887,681.70 and 497,309.40

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Solution

The fourth proportional to 591,787.80, 887,681.70 and 497,309.40 is: 745,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,787.80 : 887,681.70 = 497,309.40 : x
  2. Step 2: Convert to fraction form
    591,787.80/887,681.70 = 497,309.40/x
  3. Step 3: Cross multiply
    591,787.80x = 887,681.70 × 497,309.40
  4. Step 4: Simplify right side
    591,787.80x = 441,452,453,617.98
  5. Step 5: Solve for x
    x = 441,452,453,617.98/591,787.80
  6. Step 6: Final answer
    x = 745,964.10

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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.