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Finding the Fourth Proportional to 722,597.76, 997,350.78 and 480,890.52

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Solution

The fourth proportional to 722,597.76, 997,350.78 and 480,890.52 is: 663,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,597.76 : 997,350.78 = 480,890.52 : x
  2. Step 2: Convert to fraction form
    722,597.76/997,350.78 = 480,890.52/x
  3. Step 3: Cross multiply
    722,597.76x = 997,350.78 × 480,890.52
  4. Step 4: Simplify right side
    722,597.76x = 479,616,535,216.61
  5. Step 5: Solve for x
    x = 479,616,535,216.61/722,597.76
  6. Step 6: Final answer
    x = 663,739.31

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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.