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Finding the Fourth Proportional to 474,870.73, 655,321.53 and 260,010.76

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Solution

The fourth proportional to 474,870.73, 655,321.53 and 260,010.76 is: 358,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,870.73 : 655,321.53 = 260,010.76 : x
  2. Step 2: Convert to fraction form
    474,870.73/655,321.53 = 260,010.76/x
  3. Step 3: Cross multiply
    474,870.73x = 655,321.53 × 260,010.76
  4. Step 4: Simplify right side
    474,870.73x = 170,390,649,059.66
  5. Step 5: Solve for x
    x = 170,390,649,059.66/474,870.73
  6. Step 6: Final answer
    x = 358,814.81

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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.