Home / 865,927.25-1,194,928.11-478,719.47

Finding the Fourth Proportional to 865,927.25, 1,194,928.11 and 478,719.47

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Solution

The fourth proportional to 865,927.25, 1,194,928.11 and 478,719.47 is: 660,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,927.25 : 1,194,928.11 = 478,719.47 : x
  2. Step 2: Convert to fraction form
    865,927.25/1,194,928.11 = 478,719.47/x
  3. Step 3: Cross multiply
    865,927.25x = 1,194,928.11 × 478,719.47
  4. Step 4: Simplify right side
    865,927.25x = 572,035,345,532.66
  5. Step 5: Solve for x
    x = 572,035,345,532.66/865,927.25
  6. Step 6: Final answer
    x = 660,604.40

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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.