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Finding the Fourth Proportional to 1,228,802, 1,695,746.76 and 663,554

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Solution

The fourth proportional to 1,228,802, 1,695,746.76 and 663,554 is: 915,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,802 : 1,695,746.76 = 663,554 : x
  2. Step 2: Convert to fraction form
    1,228,802/1,695,746.76 = 663,554/x
  3. Step 3: Cross multiply
    1,228,802x = 1,695,746.76 × 663,554
  4. Step 4: Simplify right side
    1,228,802x = 1,125,219,545,585.04
  5. Step 5: Solve for x
    x = 1,125,219,545,585.04/1,228,802
  6. Step 6: Final answer
    x = 915,704.52

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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.