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Finding the Fourth Proportional to 438,312.30, 656,950.05 and 185,592.30

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Solution

The fourth proportional to 438,312.30, 656,950.05 and 185,592.30 is: 278,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,312.30 : 656,950.05 = 185,592.30 : x
  2. Step 2: Convert to fraction form
    438,312.30/656,950.05 = 185,592.30/x
  3. Step 3: Cross multiply
    438,312.30x = 656,950.05 × 185,592.30
  4. Step 4: Simplify right side
    438,312.30x = 121,924,870,764.62
  5. Step 5: Solve for x
    x = 121,924,870,764.62/438,312.30
  6. Step 6: Final answer
    x = 278,168.95

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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.