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Finding the Fourth Proportional to 527,686.60, 792,113.10 and 328,232.20

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Solution

The fourth proportional to 527,686.60, 792,113.10 and 328,232.20 is: 492,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,686.60 : 792,113.10 = 328,232.20 : x
  2. Step 2: Convert to fraction form
    527,686.60/792,113.10 = 328,232.20/x
  3. Step 3: Cross multiply
    527,686.60x = 792,113.10 × 328,232.20
  4. Step 4: Simplify right side
    527,686.60x = 259,997,025,461.82
  5. Step 5: Solve for x
    x = 259,997,025,461.82/527,686.60
  6. Step 6: Final answer
    x = 492,711.06

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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.