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Finding the Fourth Proportional to 543,714.60, 750,331.26 and 317,316.36

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Solution

The fourth proportional to 543,714.60, 750,331.26 and 317,316.36 is: 437,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,714.60 : 750,331.26 = 317,316.36 : x
  2. Step 2: Convert to fraction form
    543,714.60/750,331.26 = 317,316.36/x
  3. Step 3: Cross multiply
    543,714.60x = 750,331.26 × 317,316.36
  4. Step 4: Simplify right side
    543,714.60x = 238,092,384,217.41
  5. Step 5: Solve for x
    x = 238,092,384,217.41/543,714.60
  6. Step 6: Final answer
    x = 437,899.56

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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.