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Finding the Fourth Proportional to 572,480.80, 858,721.20 and 146,015.80

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Solution

The fourth proportional to 572,480.80, 858,721.20 and 146,015.80 is: 219,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,480.80 : 858,721.20 = 146,015.80 : x
  2. Step 2: Convert to fraction form
    572,480.80/858,721.20 = 146,015.80/x
  3. Step 3: Cross multiply
    572,480.80x = 858,721.20 × 146,015.80
  4. Step 4: Simplify right side
    572,480.80x = 125,386,862,994.96
  5. Step 5: Solve for x
    x = 125,386,862,994.96/572,480.80
  6. Step 6: Final answer
    x = 219,023.70

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Double scale
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Similar ratio
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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.