Home / 497,478.11-686,522.39-282,630.26

Finding the Fourth Proportional to 497,478.11, 686,522.39 and 282,630.26

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Solution

The fourth proportional to 497,478.11, 686,522.39 and 282,630.26 is: 390,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,478.11 : 686,522.39 = 282,630.26 : x
  2. Step 2: Convert to fraction form
    497,478.11/686,522.39 = 282,630.26/x
  3. Step 3: Cross multiply
    497,478.11x = 686,522.39 × 282,630.26
  4. Step 4: Simplify right side
    497,478.11x = 194,032,001,884.68
  5. Step 5: Solve for x
    x = 194,032,001,884.68/497,478.11
  6. Step 6: Final answer
    x = 390,031.24

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Double scale
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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.