Home / 865,240.95-1,194,056.60-478,081.32

Finding the Fourth Proportional to 865,240.95, 1,194,056.60 and 478,081.32

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Solution

The fourth proportional to 865,240.95, 1,194,056.60 and 478,081.32 is: 659,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,240.95 : 1,194,056.60 = 478,081.32 : x
  2. Step 2: Convert to fraction form
    865,240.95/1,194,056.60 = 478,081.32/x
  3. Step 3: Cross multiply
    865,240.95x = 1,194,056.60 × 478,081.32
  4. Step 4: Simplify right side
    865,240.95x = 570,856,155,331.16
  5. Step 5: Solve for x
    x = 570,856,155,331.16/865,240.95
  6. Step 6: Final answer
    x = 659,765.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.