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Finding the Fourth Proportional to 573,338.72, 791,216.88 and 315,226.56

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Solution

The fourth proportional to 573,338.72, 791,216.88 and 315,226.56 is: 435,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,338.72 : 791,216.88 = 315,226.56 : x
  2. Step 2: Convert to fraction form
    573,338.72/791,216.88 = 315,226.56/x
  3. Step 3: Cross multiply
    573,338.72x = 791,216.88 × 315,226.56
  4. Step 4: Simplify right side
    573,338.72x = 249,412,575,296.33
  5. Step 5: Solve for x
    x = 249,412,575,296.33/573,338.72
  6. Step 6: Final answer
    x = 435,017.85

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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.