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Finding the Fourth Proportional to 1,108,779, 1,530,114.76 and 625,343.11

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Solution

The fourth proportional to 1,108,779, 1,530,114.76 and 625,343.11 is: 862,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,779 : 1,530,114.76 = 625,343.11 : x
  2. Step 2: Convert to fraction form
    1,108,779/1,530,114.76 = 625,343.11/x
  3. Step 3: Cross multiply
    1,108,779x = 1,530,114.76 × 625,343.11
  4. Step 4: Simplify right side
    1,108,779x = 956,846,722,675.30
  5. Step 5: Solve for x
    x = 956,846,722,675.30/1,108,779
  6. Step 6: Final answer
    x = 862,973.35

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.