Home / 649,385.10-974,077.65-228,606.30

Finding the Fourth Proportional to 649,385.10, 974,077.65 and 228,606.30

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Solution

The fourth proportional to 649,385.10, 974,077.65 and 228,606.30 is: 342,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,385.10 : 974,077.65 = 228,606.30 : x
  2. Step 2: Convert to fraction form
    649,385.10/974,077.65 = 228,606.30/x
  3. Step 3: Cross multiply
    649,385.10x = 974,077.65 × 228,606.30
  4. Step 4: Simplify right side
    649,385.10x = 222,680,287,479.20
  5. Step 5: Solve for x
    x = 222,680,287,479.20/649,385.10
  6. Step 6: Final answer
    x = 342,909.45

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Half scale
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Double scale
Find fourth proportional to 649,386.10, 974,079.15 and 228,607.30
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.