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Finding the Fourth Proportional to 579,888.90, 801,013.19 and 483,407.91

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Solution

The fourth proportional to 579,888.90, 801,013.19 and 483,407.91 is: 667,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,888.90 : 801,013.19 = 483,407.91 : x
  2. Step 2: Convert to fraction form
    579,888.90/801,013.19 = 483,407.91/x
  3. Step 3: Cross multiply
    579,888.90x = 801,013.19 × 483,407.91
  4. Step 4: Simplify right side
    579,888.90x = 387,216,109,643.29
  5. Step 5: Solve for x
    x = 387,216,109,643.29/579,888.90
  6. Step 6: Final answer
    x = 667,741.89

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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.