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Finding the Fourth Proportional to 527,358.57, 791,171.81 and 153,381.57

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Solution

The fourth proportional to 527,358.57, 791,171.81 and 153,381.57 is: 230,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,358.57 : 791,171.81 = 153,381.57 : x
  2. Step 2: Convert to fraction form
    527,358.57/791,171.81 = 153,381.57/x
  3. Step 3: Cross multiply
    527,358.57x = 791,171.81 × 153,381.57
  4. Step 4: Simplify right side
    527,358.57x = 121,351,174,357.54
  5. Step 5: Solve for x
    x = 121,351,174,357.54/527,358.57
  6. Step 6: Final answer
    x = 230,111.32

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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.