Home / 766,863.60-1,150,295.40-435,087.60

Finding the Fourth Proportional to 766,863.60, 1,150,295.40 and 435,087.60

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Solution

The fourth proportional to 766,863.60, 1,150,295.40 and 435,087.60 is: 652,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,863.60 : 1,150,295.40 = 435,087.60 : x
  2. Step 2: Convert to fraction form
    766,863.60/1,150,295.40 = 435,087.60/x
  3. Step 3: Cross multiply
    766,863.60x = 1,150,295.40 × 435,087.60
  4. Step 4: Simplify right side
    766,863.60x = 500,479,264,877.04
  5. Step 5: Solve for x
    x = 500,479,264,877.04/766,863.60
  6. Step 6: Final answer
    x = 652,631.40

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Double scale
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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.