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Finding the Fourth Proportional to 620,484.41, 931,514.13 and 527,580.65

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Solution

The fourth proportional to 620,484.41, 931,514.13 and 527,580.65 is: 792,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,484.41 : 931,514.13 = 527,580.65 : x
  2. Step 2: Convert to fraction form
    620,484.41/931,514.13 = 527,580.65/x
  3. Step 3: Cross multiply
    620,484.41x = 931,514.13 × 527,580.65
  4. Step 4: Simplify right side
    620,484.41x = 491,448,825,532.01
  5. Step 5: Solve for x
    x = 491,448,825,532.01/620,484.41
  6. Step 6: Final answer
    x = 792,040.58

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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.