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Finding the Fourth Proportional to 1,357,563, 1,871,901.60 and 866,887.32

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Solution

The fourth proportional to 1,357,563, 1,871,901.60 and 866,887.32 is: 1,195,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,563 : 1,871,901.60 = 866,887.32 : x
  2. Step 2: Convert to fraction form
    1,357,563/1,871,901.60 = 866,887.32/x
  3. Step 3: Cross multiply
    1,357,563x = 1,871,901.60 × 866,887.32
  4. Step 4: Simplify right side
    1,357,563x = 1,622,727,761,327.71
  5. Step 5: Solve for x
    x = 1,622,727,761,327.71/1,357,563
  6. Step 6: Final answer
    x = 1,195,324.09

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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.