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Finding the Fourth Proportional to 1,200,651, 1,656,937.92 and 656,774.34

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Solution

The fourth proportional to 1,200,651, 1,656,937.92 and 656,774.34 is: 906,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,651 : 1,656,937.92 = 656,774.34 : x
  2. Step 2: Convert to fraction form
    1,200,651/1,656,937.92 = 656,774.34/x
  3. Step 3: Cross multiply
    1,200,651x = 1,656,937.92 × 656,774.34
  4. Step 4: Simplify right side
    1,200,651x = 1,088,234,308,828.97
  5. Step 5: Solve for x
    x = 1,088,234,308,828.97/1,200,651
  6. Step 6: Final answer
    x = 906,370.22

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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.