Home / 465,925.32-698,903.46-128,937.78

Finding the Fourth Proportional to 465,925.32, 698,903.46 and 128,937.78

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Solution

The fourth proportional to 465,925.32, 698,903.46 and 128,937.78 is: 193,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,925.32 : 698,903.46 = 128,937.78 : x
  2. Step 2: Convert to fraction form
    465,925.32/698,903.46 = 128,937.78/x
  3. Step 3: Cross multiply
    465,925.32x = 698,903.46 × 128,937.78
  4. Step 4: Simplify right side
    465,925.32x = 90,115,060,566.72
  5. Step 5: Solve for x
    x = 90,115,060,566.72/465,925.32
  6. Step 6: Final answer
    x = 193,410.95

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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.