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Finding the Fourth Proportional to 567,697.60, 783,387.21 and 325,810

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Solution

The fourth proportional to 567,697.60, 783,387.21 and 325,810 is: 449,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,697.60 : 783,387.21 = 325,810 : x
  2. Step 2: Convert to fraction form
    567,697.60/783,387.21 = 325,810/x
  3. Step 3: Cross multiply
    567,697.60x = 783,387.21 × 325,810
  4. Step 4: Simplify right side
    567,697.60x = 255,235,386,890.10
  5. Step 5: Solve for x
    x = 255,235,386,890.10/567,697.60
  6. Step 6: Final answer
    x = 449,597.44

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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.