Home / 623,844.61-861,126.17-369,195.19

Finding the Fourth Proportional to 623,844.61, 861,126.17 and 369,195.19

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Solution

The fourth proportional to 623,844.61, 861,126.17 and 369,195.19 is: 509,619.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,844.61 : 861,126.17 = 369,195.19 : x
  2. Step 2: Convert to fraction form
    623,844.61/861,126.17 = 369,195.19/x
  3. Step 3: Cross multiply
    623,844.61x = 861,126.17 × 369,195.19
  4. Step 4: Simplify right side
    623,844.61x = 317,923,635,948.33
  5. Step 5: Solve for x
    x = 317,923,635,948.33/623,844.61
  6. Step 6: Final answer
    x = 509,619.92

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Half scale
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Double scale
Find fourth proportional to 623,845.61, 861,127.55 and 369,196.19
Similar ratio
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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.