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Finding the Fourth Proportional to 1,270,860.74, 1,753,799.19 and 697,905.01

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Solution

The fourth proportional to 1,270,860.74, 1,753,799.19 and 697,905.01 is: 963,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,860.74 : 1,753,799.19 = 697,905.01 : x
  2. Step 2: Convert to fraction form
    1,270,860.74/1,753,799.19 = 697,905.01/x
  3. Step 3: Cross multiply
    1,270,860.74x = 1,753,799.19 × 697,905.01
  4. Step 4: Simplify right side
    1,270,860.74x = 1,223,985,244,735.76
  5. Step 5: Solve for x
    x = 1,223,985,244,735.76/1,270,860.74
  6. Step 6: Final answer
    x = 963,115.16

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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.