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Finding the Fourth Proportional to 572,722.70, 859,084.05 and 403,886.30

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Solution

The fourth proportional to 572,722.70, 859,084.05 and 403,886.30 is: 605,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,722.70 : 859,084.05 = 403,886.30 : x
  2. Step 2: Convert to fraction form
    572,722.70/859,084.05 = 403,886.30/x
  3. Step 3: Cross multiply
    572,722.70x = 859,084.05 × 403,886.30
  4. Step 4: Simplify right side
    572,722.70x = 346,972,278,343.52
  5. Step 5: Solve for x
    x = 346,972,278,343.52/572,722.70
  6. Step 6: Final answer
    x = 605,829.45

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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.