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Finding the Fourth Proportional to 524,752.80, 788,878.80 and 447,770.40

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Solution

The fourth proportional to 524,752.80, 788,878.80 and 447,770.40 is: 673,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,752.80 : 788,878.80 = 447,770.40 : x
  2. Step 2: Convert to fraction form
    524,752.80/788,878.80 = 447,770.40/x
  3. Step 3: Cross multiply
    524,752.80x = 788,878.80 × 447,770.40
  4. Step 4: Simplify right side
    524,752.80x = 353,236,575,827.52
  5. Step 5: Solve for x
    x = 353,236,575,827.52/524,752.80
  6. Step 6: Final answer
    x = 673,148.53

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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.