Home / 864,195.40-1,296,293.10-549,008.20

Finding the Fourth Proportional to 864,195.40, 1,296,293.10 and 549,008.20

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Solution

The fourth proportional to 864,195.40, 1,296,293.10 and 549,008.20 is: 823,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,195.40 : 1,296,293.10 = 549,008.20 : x
  2. Step 2: Convert to fraction form
    864,195.40/1,296,293.10 = 549,008.20/x
  3. Step 3: Cross multiply
    864,195.40x = 1,296,293.10 × 549,008.20
  4. Step 4: Simplify right side
    864,195.40x = 711,675,541,503.42
  5. Step 5: Solve for x
    x = 711,675,541,503.42/864,195.40
  6. Step 6: Final answer
    x = 823,512.30

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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.