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Finding the Fourth Proportional to 572,647.01, 858,751.45 and 188,306.33

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Solution

The fourth proportional to 572,647.01, 858,751.45 and 188,306.33 is: 282,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,647.01 : 858,751.45 = 188,306.33 : x
  2. Step 2: Convert to fraction form
    572,647.01/858,751.45 = 188,306.33/x
  3. Step 3: Cross multiply
    572,647.01x = 858,751.45 × 188,306.33
  4. Step 4: Simplify right side
    572,647.01x = 161,708,333,931.68
  5. Step 5: Solve for x
    x = 161,708,333,931.68/572,647.01
  6. Step 6: Final answer
    x = 282,387.46

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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.