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Finding the Fourth Proportional to 680,798.16, 939,359.16 and 394,301.16

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Solution

The fourth proportional to 680,798.16, 939,359.16 and 394,301.16 is: 544,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,798.16 : 939,359.16 = 394,301.16 : x
  2. Step 2: Convert to fraction form
    680,798.16/939,359.16 = 394,301.16/x
  3. Step 3: Cross multiply
    680,798.16x = 939,359.16 × 394,301.16
  4. Step 4: Simplify right side
    680,798.16x = 370,390,406,444.63
  5. Step 5: Solve for x
    x = 370,390,406,444.63/680,798.16
  6. Step 6: Final answer
    x = 544,053.18

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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.