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Finding the Fourth Proportional to 784,854.80, 1,174,657.80 and 548,658.80

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Solution

The fourth proportional to 784,854.80, 1,174,657.80 and 548,658.80 is: 821,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,854.80 : 1,174,657.80 = 548,658.80 : x
  2. Step 2: Convert to fraction form
    784,854.80/1,174,657.80 = 548,658.80/x
  3. Step 3: Cross multiply
    784,854.80x = 1,174,657.80 × 548,658.80
  4. Step 4: Simplify right side
    784,854.80x = 644,486,338,958.64
  5. Step 5: Solve for x
    x = 644,486,338,958.64/784,854.80
  6. Step 6: Final answer
    x = 821,153.59

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1.5x scale

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.