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Finding the Fourth Proportional to 581,681.53, 872,051.68 and 261,599.01

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Solution

The fourth proportional to 581,681.53, 872,051.68 and 261,599.01 is: 392,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,681.53 : 872,051.68 = 261,599.01 : x
  2. Step 2: Convert to fraction form
    581,681.53/872,051.68 = 261,599.01/x
  3. Step 3: Cross multiply
    581,681.53x = 872,051.68 × 261,599.01
  4. Step 4: Simplify right side
    581,681.53x = 228,127,856,156.84
  5. Step 5: Solve for x
    x = 228,127,856,156.84/581,681.53
  6. Step 6: Final answer
    x = 392,186.87

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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.