Home / 563,246.32-777,250.20-321,519.28

Finding the Fourth Proportional to 563,246.32, 777,250.20 and 321,519.28

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Solution

The fourth proportional to 563,246.32, 777,250.20 and 321,519.28 is: 443,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,246.32 : 777,250.20 = 321,519.28 : x
  2. Step 2: Convert to fraction form
    563,246.32/777,250.20 = 321,519.28/x
  3. Step 3: Cross multiply
    563,246.32x = 777,250.20 × 321,519.28
  4. Step 4: Simplify right side
    563,246.32x = 249,900,924,683.86
  5. Step 5: Solve for x
    x = 249,900,924,683.86/563,246.32
  6. Step 6: Final answer
    x = 443,679.64

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Half scale
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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.