Home / 865,617.17-1,194,613.52-478,424.31

Finding the Fourth Proportional to 865,617.17, 1,194,613.52 and 478,424.31

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Solution

The fourth proportional to 865,617.17, 1,194,613.52 and 478,424.31 is: 660,259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,617.17 : 1,194,613.52 = 478,424.31 : x
  2. Step 2: Convert to fraction form
    865,617.17/1,194,613.52 = 478,424.31/x
  3. Step 3: Cross multiply
    865,617.17x = 1,194,613.52 × 478,424.31
  4. Step 4: Simplify right side
    865,617.17x = 571,532,146,630.55
  5. Step 5: Solve for x
    x = 571,532,146,630.55/865,617.17
  6. Step 6: Final answer
    x = 660,259.72

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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.