Home / 527,327.72-790,985.64-127,972.88

Finding the Fourth Proportional to 527,327.72, 790,985.64 and 127,972.88

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Solution

The fourth proportional to 527,327.72, 790,985.64 and 127,972.88 is: 191,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,327.72 : 790,985.64 = 127,972.88 : x
  2. Step 2: Convert to fraction form
    527,327.72/790,985.64 = 127,972.88/x
  3. Step 3: Cross multiply
    527,327.72x = 790,985.64 × 127,972.88
  4. Step 4: Simplify right side
    527,327.72x = 101,224,710,389.44
  5. Step 5: Solve for x
    x = 101,224,710,389.44/527,327.72
  6. Step 6: Final answer
    x = 191,957.88

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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.