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Finding the Fourth Proportional to 527,597.56, 791,389.45 and 128,237.19

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Solution

The fourth proportional to 527,597.56, 791,389.45 and 128,237.19 is: 192,354.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,597.56 : 791,389.45 = 128,237.19 : x
  2. Step 2: Convert to fraction form
    527,597.56/791,389.45 = 128,237.19/x
  3. Step 3: Cross multiply
    527,597.56x = 791,389.45 × 128,237.19
  4. Step 4: Simplify right side
    527,597.56x = 101,485,559,263.65
  5. Step 5: Solve for x
    x = 101,485,559,263.65/527,597.56
  6. Step 6: Final answer
    x = 192,354.11

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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.