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Finding the Fourth Proportional to 903,932,899.56, 1,353,265,353.88 and 671,791,499.15

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Solution

The fourth proportional to 903,932,899.56, 1,353,265,353.88 and 671,791,499.15 is: 1,005,729,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,932,899.56 : 1,353,265,353.88 = 671,791,499.15 : x
  2. Step 2: Convert to fraction form
    903,932,899.56/1,353,265,353.88 = 671,791,499.15/x
  3. Step 3: Cross multiply
    903,932,899.56x = 1,353,265,353.88 × 671,791,499.15
  4. Step 4: Simplify right side
    903,932,899.56x = 909,112,160,825,737,856
  5. Step 5: Solve for x
    x = 909,112,160,825,737,856/903,932,899.56
  6. Step 6: Final answer
    x = 1,005,729,696.60

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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.