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Finding the Fourth Proportional to 366,909,892.60, 550,364,838.90 and 338,849,807.80

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Solution

The fourth proportional to 366,909,892.60, 550,364,838.90 and 338,849,807.80 is: 508,274,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,909,892.60 : 550,364,838.90 = 338,849,807.80 : x
  2. Step 2: Convert to fraction form
    366,909,892.60/550,364,838.90 = 338,849,807.80/x
  3. Step 3: Cross multiply
    366,909,892.60x = 550,364,838.90 × 338,849,807.80
  4. Step 4: Simplify right side
    366,909,892.60x = 186,491,019,881,142,976
  5. Step 5: Solve for x
    x = 186,491,019,881,142,976/366,909,892.60
  6. Step 6: Final answer
    x = 508,274,711.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.