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Finding the Fourth Proportional to 374,978,680.90, 517,650,017.75 and 249,739,294.84

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Solution

The fourth proportional to 374,978,680.90, 517,650,017.75 and 249,739,294.84 is: 344,759,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,978,680.90 : 517,650,017.75 = 249,739,294.84 : x
  2. Step 2: Convert to fraction form
    374,978,680.90/517,650,017.75 = 249,739,294.84/x
  3. Step 3: Cross multiply
    374,978,680.90x = 517,650,017.75 × 249,739,294.84
  4. Step 4: Simplify right side
    374,978,680.90x = 129,277,550,408,101,376
  5. Step 5: Solve for x
    x = 129,277,550,408,101,376/374,978,680.90
  6. Step 6: Final answer
    x = 344,759,734.33

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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.