Home / 527,306.40-727,727.64-297,905.82

Finding the Fourth Proportional to 527,306.40, 727,727.64 and 297,905.82

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Solution

The fourth proportional to 527,306.40, 727,727.64 and 297,905.82 is: 411,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,306.40 : 727,727.64 = 297,905.82 : x
  2. Step 2: Convert to fraction form
    527,306.40/727,727.64 = 297,905.82/x
  3. Step 3: Cross multiply
    527,306.40x = 727,727.64 × 297,905.82
  4. Step 4: Simplify right side
    527,306.40x = 216,794,299,330.87
  5. Step 5: Solve for x
    x = 216,794,299,330.87/527,306.40
  6. Step 6: Final answer
    x = 411,135.35

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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.