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Finding the Fourth Proportional to 607,959.64, 838,549.17 and 426,712

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Solution

The fourth proportional to 607,959.64, 838,549.17 and 426,712 is: 588,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,959.64 : 838,549.17 = 426,712 : x
  2. Step 2: Convert to fraction form
    607,959.64/838,549.17 = 426,712/x
  3. Step 3: Cross multiply
    607,959.64x = 838,549.17 × 426,712
  4. Step 4: Simplify right side
    607,959.64x = 357,818,993,429.04
  5. Step 5: Solve for x
    x = 357,818,993,429.04/607,959.64
  6. Step 6: Final answer
    x = 588,557.15

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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.