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Finding the Fourth Proportional to 572,348.80, 789,844.40 and 357,613.39

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Solution

The fourth proportional to 572,348.80, 789,844.40 and 357,613.39 is: 493,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,348.80 : 789,844.40 = 357,613.39 : x
  2. Step 2: Convert to fraction form
    572,348.80/789,844.40 = 357,613.39/x
  3. Step 3: Cross multiply
    572,348.80x = 789,844.40 × 357,613.39
  4. Step 4: Simplify right side
    572,348.80x = 282,458,933,456.52
  5. Step 5: Solve for x
    x = 282,458,933,456.52/572,348.80
  6. Step 6: Final answer
    x = 493,508.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.