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Finding the Fourth Proportional to 549,615.40, 824,423.10 and 194,626.60

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Solution

The fourth proportional to 549,615.40, 824,423.10 and 194,626.60 is: 291,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,615.40 : 824,423.10 = 194,626.60 : x
  2. Step 2: Convert to fraction form
    549,615.40/824,423.10 = 194,626.60/x
  3. Step 3: Cross multiply
    549,615.40x = 824,423.10 × 194,626.60
  4. Step 4: Simplify right side
    549,615.40x = 160,454,664,914.46
  5. Step 5: Solve for x
    x = 160,454,664,914.46/549,615.40
  6. Step 6: Final answer
    x = 291,939.90

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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.