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Finding the Fourth Proportional to 440,647.25, 608,117.81 and 249,722.15

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Solution

The fourth proportional to 440,647.25, 608,117.81 and 249,722.15 is: 344,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,647.25 : 608,117.81 = 249,722.15 : x
  2. Step 2: Convert to fraction form
    440,647.25/608,117.81 = 249,722.15/x
  3. Step 3: Cross multiply
    440,647.25x = 608,117.81 × 249,722.15
  4. Step 4: Simplify right side
    440,647.25x = 151,860,486,966.49
  5. Step 5: Solve for x
    x = 151,860,486,966.49/440,647.25
  6. Step 6: Final answer
    x = 344,630.51

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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.