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Finding the Fourth Proportional to 578,009.70, 867,170.37 and 240,938.32

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Solution

The fourth proportional to 578,009.70, 867,170.37 and 240,938.32 is: 361,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,009.70 : 867,170.37 = 240,938.32 : x
  2. Step 2: Convert to fraction form
    578,009.70/867,170.37 = 240,938.32/x
  3. Step 3: Cross multiply
    578,009.70x = 867,170.37 × 240,938.32
  4. Step 4: Simplify right side
    578,009.70x = 208,934,572,101.58
  5. Step 5: Solve for x
    x = 208,934,572,101.58/578,009.70
  6. Step 6: Final answer
    x = 361,472.43

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Double scale
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Similar ratio
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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.