Home / 865,240.86-1,194,056.46-478,081.22

Finding the Fourth Proportional to 865,240.86, 1,194,056.46 and 478,081.22

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Solution

The fourth proportional to 865,240.86, 1,194,056.46 and 478,081.22 is: 659,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,240.86 : 1,194,056.46 = 478,081.22 : x
  2. Step 2: Convert to fraction form
    865,240.86/1,194,056.46 = 478,081.22/x
  3. Step 3: Cross multiply
    865,240.86x = 1,194,056.46 × 478,081.22
  4. Step 4: Simplify right side
    865,240.86x = 570,855,972,130.82
  5. Step 5: Solve for x
    x = 570,855,972,130.82/865,240.86
  6. Step 6: Final answer
    x = 659,765.39

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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.