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Finding the Fourth Proportional to 992,616.19, 1,369,952.36 and 557,080.00

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Solution

The fourth proportional to 992,616.19, 1,369,952.36 and 557,080.00 is: 768,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,616.19 : 1,369,952.36 = 557,080.00 : x
  2. Step 2: Convert to fraction form
    992,616.19/1,369,952.36 = 557,080.00/x
  3. Step 3: Cross multiply
    992,616.19x = 1,369,952.36 × 557,080.00
  4. Step 4: Simplify right side
    992,616.19x = 763,173,059,635.84
  5. Step 5: Solve for x
    x = 763,173,059,635.84/992,616.19
  6. Step 6: Final answer
    x = 768,850.10

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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.