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Finding the Fourth Proportional to 581,143.63, 801,654.42 and 540,043.69

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Solution

The fourth proportional to 581,143.63, 801,654.42 and 540,043.69 is: 744,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,143.63 : 801,654.42 = 540,043.69 : x
  2. Step 2: Convert to fraction form
    581,143.63/801,654.42 = 540,043.69/x
  3. Step 3: Cross multiply
    581,143.63x = 801,654.42 × 540,043.69
  4. Step 4: Simplify right side
    581,143.63x = 432,928,411,081.61
  5. Step 5: Solve for x
    x = 432,928,411,081.61/581,143.63
  6. Step 6: Final answer
    x = 744,959.40

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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.