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Finding the Fourth Proportional to 792,357.60, 1,189,702.80 and 615,064.80

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Solution

The fourth proportional to 792,357.60, 1,189,702.80 and 615,064.80 is: 923,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,357.60 : 1,189,702.80 = 615,064.80 : x
  2. Step 2: Convert to fraction form
    792,357.60/1,189,702.80 = 615,064.80/x
  3. Step 3: Cross multiply
    792,357.60x = 1,189,702.80 × 615,064.80
  4. Step 4: Simplify right side
    792,357.60x = 731,744,314,741.44
  5. Step 5: Solve for x
    x = 731,744,314,741.44/792,357.60
  6. Step 6: Final answer
    x = 923,502.61

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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.