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Finding the Fourth Proportional to 374,978,694.04, 517,650,035.88 and 249,739,307.98

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Solution

The fourth proportional to 374,978,694.04, 517,650,035.88 and 249,739,307.98 is: 344,759,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,978,694.04 : 517,650,035.88 = 249,739,307.98 : x
  2. Step 2: Convert to fraction form
    374,978,694.04/517,650,035.88 = 249,739,307.98/x
  3. Step 3: Cross multiply
    374,978,694.04x = 517,650,035.88 × 249,739,307.98
  4. Step 4: Simplify right side
    374,978,694.04x = 129,277,561,739,050,144
  5. Step 5: Solve for x
    x = 129,277,561,739,050,144/374,978,694.04
  6. Step 6: Final answer
    x = 344,759,752.47

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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.