Home / 864,672.30-1,297,008.45-812,184.30

Finding the Fourth Proportional to 864,672.30, 1,297,008.45 and 812,184.30

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Solution

The fourth proportional to 864,672.30, 1,297,008.45 and 812,184.30 is: 1,218,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,672.30 : 1,297,008.45 = 812,184.30 : x
  2. Step 2: Convert to fraction form
    864,672.30/1,297,008.45 = 812,184.30/x
  3. Step 3: Cross multiply
    864,672.30x = 1,297,008.45 × 812,184.30
  4. Step 4: Simplify right side
    864,672.30x = 1,053,409,900,057.34
  5. Step 5: Solve for x
    x = 1,053,409,900,057.34/864,672.30
  6. Step 6: Final answer
    x = 1,218,276.45

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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.