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Finding the Fourth Proportional to 1,194,399, 1,648,270.62 and 657,855

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Solution

The fourth proportional to 1,194,399, 1,648,270.62 and 657,855 is: 907,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,399 : 1,648,270.62 = 657,855 : x
  2. Step 2: Convert to fraction form
    1,194,399/1,648,270.62 = 657,855/x
  3. Step 3: Cross multiply
    1,194,399x = 1,648,270.62 × 657,855
  4. Step 4: Simplify right side
    1,194,399x = 1,084,323,068,720.10
  5. Step 5: Solve for x
    x = 1,084,323,068,720.10/1,194,399
  6. Step 6: Final answer
    x = 907,839.90

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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.