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Finding the Fourth Proportional to 1,187,883, 1,780,978.02 and 556,452.36

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Solution

The fourth proportional to 1,187,883, 1,780,978.02 and 556,452.36 is: 834,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,883 : 1,780,978.02 = 556,452.36 : x
  2. Step 2: Convert to fraction form
    1,187,883/1,780,978.02 = 556,452.36/x
  3. Step 3: Cross multiply
    1,187,883x = 1,780,978.02 × 556,452.36
  4. Step 4: Simplify right side
    1,187,883x = 991,029,422,337.13
  5. Step 5: Solve for x
    x = 991,029,422,337.13/1,187,883
  6. Step 6: Final answer
    x = 834,282.01

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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.