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Finding the Fourth Proportional to 581,978.80, 872,713.69 and 293,613.01

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Solution

The fourth proportional to 581,978.80, 872,713.69 and 293,613.01 is: 440,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,978.80 : 872,713.69 = 293,613.01 : x
  2. Step 2: Convert to fraction form
    581,978.80/872,713.69 = 293,613.01/x
  3. Step 3: Cross multiply
    581,978.80x = 872,713.69 × 293,613.01
  4. Step 4: Simplify right side
    581,978.80x = 256,240,093,389.11
  5. Step 5: Solve for x
    x = 256,240,093,389.11/581,978.80
  6. Step 6: Final answer
    x = 440,291.11

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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.