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Finding the Fourth Proportional to 342,892.70, 514,630.65 and 153,644.30

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Solution

The fourth proportional to 342,892.70, 514,630.65 and 153,644.30 is: 230,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,892.70 : 514,630.65 = 153,644.30 : x
  2. Step 2: Convert to fraction form
    342,892.70/514,630.65 = 153,644.30/x
  3. Step 3: Cross multiply
    342,892.70x = 514,630.65 × 153,644.30
  4. Step 4: Simplify right side
    342,892.70x = 79,070,065,977.80
  5. Step 5: Solve for x
    x = 79,070,065,977.80/342,892.70
  6. Step 6: Final answer
    x = 230,597.11

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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.