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Finding the Fourth Proportional to 765,762.36, 1,056,752.10 and 426,223.32

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Solution

The fourth proportional to 765,762.36, 1,056,752.10 and 426,223.32 is: 588,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,762.36 : 1,056,752.10 = 426,223.32 : x
  2. Step 2: Convert to fraction form
    765,762.36/1,056,752.10 = 426,223.32/x
  3. Step 3: Cross multiply
    765,762.36x = 1,056,752.10 × 426,223.32
  4. Step 4: Simplify right side
    765,762.36x = 450,412,388,478.97
  5. Step 5: Solve for x
    x = 450,412,388,478.97/765,762.36
  6. Step 6: Final answer
    x = 588,188.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.