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Finding the Fourth Proportional to 1,736,687.80, 2,605,031.70 and 1,169,817.40

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Solution

The fourth proportional to 1,736,687.80, 2,605,031.70 and 1,169,817.40 is: 1,754,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736,687.80 : 2,605,031.70 = 1,169,817.40 : x
  2. Step 2: Convert to fraction form
    1,736,687.80/2,605,031.70 = 1,169,817.40/x
  3. Step 3: Cross multiply
    1,736,687.80x = 2,605,031.70 × 1,169,817.40
  4. Step 4: Simplify right side
    1,736,687.80x = 3,047,411,410,211.58
  5. Step 5: Solve for x
    x = 3,047,411,410,211.58/1,736,687.80
  6. Step 6: Final answer
    x = 1,754,726.10

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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.