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Finding the Fourth Proportional to 425,696.80, 587,461.08 and 234,713.20

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Solution

The fourth proportional to 425,696.80, 587,461.08 and 234,713.20 is: 323,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,696.80 : 587,461.08 = 234,713.20 : x
  2. Step 2: Convert to fraction form
    425,696.80/587,461.08 = 234,713.20/x
  3. Step 3: Cross multiply
    425,696.80x = 587,461.08 × 234,713.20
  4. Step 4: Simplify right side
    425,696.80x = 137,884,869,962.26
  5. Step 5: Solve for x
    x = 137,884,869,962.26/425,696.80
  6. Step 6: Final answer
    x = 323,903.94

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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.