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Finding the Fourth Proportional to 724,472.40, 1,086,854.40 and 606,957.60

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Solution

The fourth proportional to 724,472.40, 1,086,854.40 and 606,957.60 is: 910,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,472.40 : 1,086,854.40 = 606,957.60 : x
  2. Step 2: Convert to fraction form
    724,472.40/1,086,854.40 = 606,957.60/x
  3. Step 3: Cross multiply
    724,472.40x = 1,086,854.40 × 606,957.60
  4. Step 4: Simplify right side
    724,472.40x = 659,674,538,173.44
  5. Step 5: Solve for x
    x = 659,674,538,173.44/724,472.40
  6. Step 6: Final answer
    x = 910,558.55

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Double scale
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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.