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Finding the Fourth Proportional to 5,893,261.80, 8,839,892.70 and 5,641,319.40

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Solution

The fourth proportional to 5,893,261.80, 8,839,892.70 and 5,641,319.40 is: 8,461,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,893,261.80 : 8,839,892.70 = 5,641,319.40 : x
  2. Step 2: Convert to fraction form
    5,893,261.80/8,839,892.70 = 5,641,319.40/x
  3. Step 3: Cross multiply
    5,893,261.80x = 8,839,892.70 × 5,641,319.40
  4. Step 4: Simplify right side
    5,893,261.80x = 49,868,658,182,428.38
  5. Step 5: Solve for x
    x = 49,868,658,182,428.38/5,893,261.80
  6. Step 6: Final answer
    x = 8,461,979.10

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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.