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Finding the Fourth Proportional to 836,358.10, 1,255,521.30 and 830,453.20

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Solution

The fourth proportional to 836,358.10, 1,255,521.30 and 830,453.20 is: 1,246,657.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,358.10 : 1,255,521.30 = 830,453.20 : x
  2. Step 2: Convert to fraction form
    836,358.10/1,255,521.30 = 830,453.20/x
  3. Step 3: Cross multiply
    836,358.10x = 1,255,521.30 × 830,453.20
  4. Step 4: Simplify right side
    836,358.10x = 1,042,651,681,253.16
  5. Step 5: Solve for x
    x = 1,042,651,681,253.16/836,358.10
  6. Step 6: Final answer
    x = 1,246,657.00

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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.