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Finding the Fourth Proportional to 565,287.20, 849,313.20 and 425,319.20

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Solution

The fourth proportional to 565,287.20, 849,313.20 and 425,319.20 is: 639,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,287.20 : 849,313.20 = 425,319.20 : x
  2. Step 2: Convert to fraction form
    565,287.20/849,313.20 = 425,319.20/x
  3. Step 3: Cross multiply
    565,287.20x = 849,313.20 × 425,319.20
  4. Step 4: Simplify right side
    565,287.20x = 361,229,210,773.44
  5. Step 5: Solve for x
    x = 361,229,210,773.44/565,287.20
  6. Step 6: Final answer
    x = 639,018.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.