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Finding the Fourth Proportional to 708,671.59, 977,986.42 and 433,074.05

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Solution

The fourth proportional to 708,671.59, 977,986.42 and 433,074.05 is: 597,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,671.59 : 977,986.42 = 433,074.05 : x
  2. Step 2: Convert to fraction form
    708,671.59/977,986.42 = 433,074.05/x
  3. Step 3: Cross multiply
    708,671.59x = 977,986.42 × 433,074.05
  4. Step 4: Simplify right side
    708,671.59x = 423,540,542,950.41
  5. Step 5: Solve for x
    x = 423,540,542,950.41/708,671.59
  6. Step 6: Final answer
    x = 597,654.18

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1.5x scale

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.