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Finding the Fourth Proportional to 620,451.41, 931,464.59 and 527,547.65

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Solution

The fourth proportional to 620,451.41, 931,464.59 and 527,547.65 is: 791,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,451.41 : 931,464.59 = 527,547.65 : x
  2. Step 2: Convert to fraction form
    620,451.41/931,464.59 = 527,547.65/x
  3. Step 3: Cross multiply
    620,451.41x = 931,464.59 × 527,547.65
  4. Step 4: Simplify right side
    620,451.41x = 491,391,948,217.65
  5. Step 5: Solve for x
    x = 491,391,948,217.65/620,451.41
  6. Step 6: Final answer
    x = 791,991.03

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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.