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Finding the Fourth Proportional to 417,692,179.98, 626,538,386.00 and 155,342,452.86

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Solution

The fourth proportional to 417,692,179.98, 626,538,386.00 and 155,342,452.86 is: 233,013,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,692,179.98 : 626,538,386.00 = 155,342,452.86 : x
  2. Step 2: Convert to fraction form
    417,692,179.98/626,538,386.00 = 155,342,452.86/x
  3. Step 3: Cross multiply
    417,692,179.98x = 626,538,386.00 × 155,342,452.86
  4. Step 4: Simplify right side
    417,692,179.98x = 97,328,009,692,573,856
  5. Step 5: Solve for x
    x = 97,328,009,692,573,856/417,692,179.98
  6. Step 6: Final answer
    x = 233,013,722.44

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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.