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Finding the Fourth Proportional to 572,663.70, 858,995.55 and 333,187.20

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Solution

The fourth proportional to 572,663.70, 858,995.55 and 333,187.20 is: 499,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,663.70 : 858,995.55 = 333,187.20 : x
  2. Step 2: Convert to fraction form
    572,663.70/858,995.55 = 333,187.20/x
  3. Step 3: Cross multiply
    572,663.70x = 858,995.55 × 333,187.20
  4. Step 4: Simplify right side
    572,663.70x = 286,206,322,116.96
  5. Step 5: Solve for x
    x = 286,206,322,116.96/572,663.70
  6. Step 6: Final answer
    x = 499,780.80

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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.