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Finding the Fourth Proportional to 524,007.20, 786,010.80 and 191,712.80

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Solution

The fourth proportional to 524,007.20, 786,010.80 and 191,712.80 is: 287,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,007.20 : 786,010.80 = 191,712.80 : x
  2. Step 2: Convert to fraction form
    524,007.20/786,010.80 = 191,712.80/x
  3. Step 3: Cross multiply
    524,007.20x = 786,010.80 × 191,712.80
  4. Step 4: Simplify right side
    524,007.20x = 150,688,331,298.24
  5. Step 5: Solve for x
    x = 150,688,331,298.24/524,007.20
  6. Step 6: Final answer
    x = 287,569.20

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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.