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Finding the Fourth Proportional to 572,592.40, 858,888.60 and 440,141.20

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Solution

The fourth proportional to 572,592.40, 858,888.60 and 440,141.20 is: 660,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,592.40 : 858,888.60 = 440,141.20 : x
  2. Step 2: Convert to fraction form
    572,592.40/858,888.60 = 440,141.20/x
  3. Step 3: Cross multiply
    572,592.40x = 858,888.60 × 440,141.20
  4. Step 4: Simplify right side
    572,592.40x = 378,032,259,070.32
  5. Step 5: Solve for x
    x = 378,032,259,070.32/572,592.40
  6. Step 6: Final answer
    x = 660,211.80

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Half scale
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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.