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Finding the Fourth Proportional to 474,689.49, 655,088.16 and 259,829.73

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Solution

The fourth proportional to 474,689.49, 655,088.16 and 259,829.73 is: 358,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,689.49 : 655,088.16 = 259,829.73 : x
  2. Step 2: Convert to fraction form
    474,689.49/655,088.16 = 259,829.73/x
  3. Step 3: Cross multiply
    474,689.49x = 655,088.16 × 259,829.73
  4. Step 4: Simplify right side
    474,689.49x = 170,211,379,739.00
  5. Step 5: Solve for x
    x = 170,211,379,739.00/474,689.49
  6. Step 6: Final answer
    x = 358,574.15

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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.