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Finding the Fourth Proportional to 586,881.21, 879,726.27 and 333,638.55

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Solution

The fourth proportional to 586,881.21, 879,726.27 and 333,638.55 is: 500,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,881.21 : 879,726.27 = 333,638.55 : x
  2. Step 2: Convert to fraction form
    586,881.21/879,726.27 = 333,638.55/x
  3. Step 3: Cross multiply
    586,881.21x = 879,726.27 × 333,638.55
  4. Step 4: Simplify right side
    586,881.21x = 293,510,597,119.71
  5. Step 5: Solve for x
    x = 293,510,597,119.71/586,881.21
  6. Step 6: Final answer
    x = 500,119.26

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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.