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Finding the Fourth Proportional to 612,475.68, 845,092.17 and 357,777.66

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Solution

The fourth proportional to 612,475.68, 845,092.17 and 357,777.66 is: 493,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,475.68 : 845,092.17 = 357,777.66 : x
  2. Step 2: Convert to fraction form
    612,475.68/845,092.17 = 357,777.66/x
  3. Step 3: Cross multiply
    612,475.68x = 845,092.17 × 357,777.66
  4. Step 4: Simplify right side
    612,475.68x = 302,355,099,066.92
  5. Step 5: Solve for x
    x = 302,355,099,066.92/612,475.68
  6. Step 6: Final answer
    x = 493,660.58

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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.