Home / 497,116.76-686,025.77-282,261.42

Finding the Fourth Proportional to 497,116.76, 686,025.77 and 282,261.42

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Solution

The fourth proportional to 497,116.76, 686,025.77 and 282,261.42 is: 389,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,116.76 : 686,025.77 = 282,261.42 : x
  2. Step 2: Convert to fraction form
    497,116.76/686,025.77 = 282,261.42/x
  3. Step 3: Cross multiply
    497,116.76x = 686,025.77 × 282,261.42
  4. Step 4: Simplify right side
    497,116.76x = 193,638,606,585.49
  5. Step 5: Solve for x
    x = 193,638,606,585.49/497,116.76
  6. Step 6: Final answer
    x = 389,523.40

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Half scale
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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.