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Finding the Fourth Proportional to 572,937.36, 790,377.12 and 381,706.08

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Solution

The fourth proportional to 572,937.36, 790,377.12 and 381,706.08 is: 526,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,937.36 : 790,377.12 = 381,706.08 : x
  2. Step 2: Convert to fraction form
    572,937.36/790,377.12 = 381,706.08/x
  3. Step 3: Cross multiply
    572,937.36x = 790,377.12 × 381,706.08
  4. Step 4: Simplify right side
    572,937.36x = 301,691,752,196.89
  5. Step 5: Solve for x
    x = 301,691,752,196.89/572,937.36
  6. Step 6: Final answer
    x = 526,570.22

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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.