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Finding the Fourth Proportional to 1,202,140, 1,659,005.04 and 665,596

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Solution

The fourth proportional to 1,202,140, 1,659,005.04 and 665,596 is: 918,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,140 : 1,659,005.04 = 665,596 : x
  2. Step 2: Convert to fraction form
    1,202,140/1,659,005.04 = 665,596/x
  3. Step 3: Cross multiply
    1,202,140x = 1,659,005.04 × 665,596
  4. Step 4: Simplify right side
    1,202,140x = 1,104,227,118,603.84
  5. Step 5: Solve for x
    x = 1,104,227,118,603.84/1,202,140
  6. Step 6: Final answer
    x = 918,551.18

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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.