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Finding the Fourth Proportional to 567,207.99, 782,752.28 and 312,568.29

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Solution

The fourth proportional to 567,207.99, 782,752.28 and 312,568.29 is: 431,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,207.99 : 782,752.28 = 312,568.29 : x
  2. Step 2: Convert to fraction form
    567,207.99/782,752.28 = 312,568.29/x
  3. Step 3: Cross multiply
    567,207.99x = 782,752.28 × 312,568.29
  4. Step 4: Simplify right side
    567,207.99x = 244,663,540,090.36
  5. Step 5: Solve for x
    x = 244,663,540,090.36/567,207.99
  6. Step 6: Final answer
    x = 431,347.13

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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.