Home / 465,947.04-698,921.52-128,988.72

Finding the Fourth Proportional to 465,947.04, 698,921.52 and 128,988.72

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Solution

The fourth proportional to 465,947.04, 698,921.52 and 128,988.72 is: 193,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,947.04 : 698,921.52 = 128,988.72 : x
  2. Step 2: Convert to fraction form
    465,947.04/698,921.52 = 128,988.72/x
  3. Step 3: Cross multiply
    465,947.04x = 698,921.52 × 128,988.72
  4. Step 4: Simplify right side
    465,947.04x = 90,152,992,245.25
  5. Step 5: Solve for x
    x = 90,152,992,245.25/465,947.04
  6. Step 6: Final answer
    x = 193,483.35

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Similar ratio
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1.5x scale

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.