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Finding the Fourth Proportional to 545,393.43, 818,127.45 and 185,417.73

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Solution

The fourth proportional to 545,393.43, 818,127.45 and 185,417.73 is: 278,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,393.43 : 818,127.45 = 185,417.73 : x
  2. Step 2: Convert to fraction form
    545,393.43/818,127.45 = 185,417.73/x
  3. Step 3: Cross multiply
    545,393.43x = 818,127.45 × 185,417.73
  4. Step 4: Simplify right side
    545,393.43x = 151,695,334,629.69
  5. Step 5: Solve for x
    x = 151,695,334,629.69/545,393.43
  6. Step 6: Final answer
    x = 278,139.28

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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.