Home / 457,683.10-686,524.65-208,851.10

Finding the Fourth Proportional to 457,683.10, 686,524.65 and 208,851.10

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Solution

The fourth proportional to 457,683.10, 686,524.65 and 208,851.10 is: 313,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,683.10 : 686,524.65 = 208,851.10 : x
  2. Step 2: Convert to fraction form
    457,683.10/686,524.65 = 208,851.10/x
  3. Step 3: Cross multiply
    457,683.10x = 686,524.65 × 208,851.10
  4. Step 4: Simplify right side
    457,683.10x = 143,381,428,329.62
  5. Step 5: Solve for x
    x = 143,381,428,329.62/457,683.10
  6. Step 6: Final answer
    x = 313,276.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.