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Finding the Fourth Proportional to 474,681.84, 655,061.92 and 259,835.62

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Solution

The fourth proportional to 474,681.84, 655,061.92 and 259,835.62 is: 358,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,681.84 : 655,061.92 = 259,835.62 : x
  2. Step 2: Convert to fraction form
    474,681.84/655,061.92 = 259,835.62/x
  3. Step 3: Cross multiply
    474,681.84x = 655,061.92 × 259,835.62
  4. Step 4: Simplify right side
    474,681.84x = 170,208,420,121.59
  5. Step 5: Solve for x
    x = 170,208,420,121.59/474,681.84
  6. Step 6: Final answer
    x = 358,573.69

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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.