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Finding the Fourth Proportional to 474,618.79, 654,989.18 and 259,758.59

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Solution

The fourth proportional to 474,618.79, 654,989.18 and 259,758.59 is: 358,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,618.79 : 654,989.18 = 259,758.59 : x
  2. Step 2: Convert to fraction form
    474,618.79/654,989.18 = 259,758.59/x
  3. Step 3: Cross multiply
    474,618.79x = 654,989.18 × 259,758.59
  4. Step 4: Simplify right side
    474,618.79x = 170,139,066,200.74
  5. Step 5: Solve for x
    x = 170,139,066,200.74/474,618.79
  6. Step 6: Final answer
    x = 358,475.20

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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.