Home / 865,395.51-1,194,002.55-497,853.42

Finding the Fourth Proportional to 865,395.51, 1,194,002.55 and 497,853.42

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Solution

The fourth proportional to 865,395.51, 1,194,002.55 and 497,853.42 is: 686,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,395.51 : 1,194,002.55 = 497,853.42 : x
  2. Step 2: Convert to fraction form
    865,395.51/1,194,002.55 = 497,853.42/x
  3. Step 3: Cross multiply
    865,395.51x = 1,194,002.55 × 497,853.42
  4. Step 4: Simplify right side
    865,395.51x = 594,438,253,006.22
  5. Step 5: Solve for x
    x = 594,438,253,006.22/865,395.51
  6. Step 6: Final answer
    x = 686,897.78

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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.