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Finding the Fourth Proportional to 603,007.20, 904,510.80 and 247,903.20

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Solution

The fourth proportional to 603,007.20, 904,510.80 and 247,903.20 is: 371,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,007.20 : 904,510.80 = 247,903.20 : x
  2. Step 2: Convert to fraction form
    603,007.20/904,510.80 = 247,903.20/x
  3. Step 3: Cross multiply
    603,007.20x = 904,510.80 × 247,903.20
  4. Step 4: Simplify right side
    603,007.20x = 224,231,121,754.56
  5. Step 5: Solve for x
    x = 224,231,121,754.56/603,007.20
  6. Step 6: Final answer
    x = 371,854.80

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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.