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Finding the Fourth Proportional to 385,281.60, 531,898.56 and 232,347.12

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Solution

The fourth proportional to 385,281.60, 531,898.56 and 232,347.12 is: 320,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,281.60 : 531,898.56 = 232,347.12 : x
  2. Step 2: Convert to fraction form
    385,281.60/531,898.56 = 232,347.12/x
  3. Step 3: Cross multiply
    385,281.60x = 531,898.56 × 232,347.12
  4. Step 4: Simplify right side
    385,281.60x = 123,585,098,548.15
  5. Step 5: Solve for x
    x = 123,585,098,548.15/385,281.60
  6. Step 6: Final answer
    x = 320,765.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.