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Finding the Fourth Proportional to 572,373.48, 858,365.82 and 198,309.16

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Solution

The fourth proportional to 572,373.48, 858,365.82 and 198,309.16 is: 297,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,373.48 : 858,365.82 = 198,309.16 : x
  2. Step 2: Convert to fraction form
    572,373.48/858,365.82 = 198,309.16/x
  3. Step 3: Cross multiply
    572,373.48x = 858,365.82 × 198,309.16
  4. Step 4: Simplify right side
    572,373.48x = 170,221,804,736.91
  5. Step 5: Solve for x
    x = 170,221,804,736.91/572,373.48
  6. Step 6: Final answer
    x = 297,396.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.