Home / 853,402.60-1,280,103.90-433,498.60

Finding the Fourth Proportional to 853,402.60, 1,280,103.90 and 433,498.60

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Solution

The fourth proportional to 853,402.60, 1,280,103.90 and 433,498.60 is: 650,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,402.60 : 1,280,103.90 = 433,498.60 : x
  2. Step 2: Convert to fraction form
    853,402.60/1,280,103.90 = 433,498.60/x
  3. Step 3: Cross multiply
    853,402.60x = 1,280,103.90 × 433,498.60
  4. Step 4: Simplify right side
    853,402.60x = 554,923,248,504.54
  5. Step 5: Solve for x
    x = 554,923,248,504.54/853,402.60
  6. Step 6: Final answer
    x = 650,247.90

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.