Home / 527,153.07-727,471.68-285,435.78

Finding the Fourth Proportional to 527,153.07, 727,471.68 and 285,435.78

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Solution

The fourth proportional to 527,153.07, 727,471.68 and 285,435.78 is: 393,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,153.07 : 727,471.68 = 285,435.78 : x
  2. Step 2: Convert to fraction form
    527,153.07/727,471.68 = 285,435.78/x
  3. Step 3: Cross multiply
    527,153.07x = 727,471.68 × 285,435.78
  4. Step 4: Simplify right side
    527,153.07x = 207,646,446,408.71
  5. Step 5: Solve for x
    x = 207,646,446,408.71/527,153.07
  6. Step 6: Final answer
    x = 393,901.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.