Home / 527,403.34-727,820.11-285,685.91

Finding the Fourth Proportional to 527,403.34, 727,820.11 and 285,685.91

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Solution

The fourth proportional to 527,403.34, 727,820.11 and 285,685.91 is: 394,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,403.34 : 727,820.11 = 285,685.91 : x
  2. Step 2: Convert to fraction form
    527,403.34/727,820.11 = 285,685.91/x
  3. Step 3: Cross multiply
    527,403.34x = 727,820.11 × 285,685.91
  4. Step 4: Simplify right side
    527,403.34x = 207,927,950,832.77
  5. Step 5: Solve for x
    x = 207,927,950,832.77/527,403.34
  6. Step 6: Final answer
    x = 394,248.45

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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.