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Finding the Fourth Proportional to 876,660.10, 1,314,892.95 and 718,612.90

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Solution

The fourth proportional to 876,660.10, 1,314,892.95 and 718,612.90 is: 1,077,839.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,660.10 : 1,314,892.95 = 718,612.90 : x
  2. Step 2: Convert to fraction form
    876,660.10/1,314,892.95 = 718,612.90/x
  3. Step 3: Cross multiply
    876,660.10x = 1,314,892.95 × 718,612.90
  4. Step 4: Simplify right side
    876,660.10x = 944,899,035,989.06
  5. Step 5: Solve for x
    x = 944,899,035,989.06/876,660.10
  6. Step 6: Final answer
    x = 1,077,839.67

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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.