Home / 527,981.37-727,909.43-419,445.83

Finding the Fourth Proportional to 527,981.37, 727,909.43 and 419,445.83

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Solution

The fourth proportional to 527,981.37, 727,909.43 and 419,445.83 is: 578,275.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,981.37 : 727,909.43 = 419,445.83 : x
  2. Step 2: Convert to fraction form
    527,981.37/727,909.43 = 419,445.83/x
  3. Step 3: Cross multiply
    527,981.37x = 727,909.43 × 419,445.83
  4. Step 4: Simplify right side
    527,981.37x = 305,318,569,294.40
  5. Step 5: Solve for x
    x = 305,318,569,294.40/527,981.37
  6. Step 6: Final answer
    x = 578,275.27

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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.