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Finding the Fourth Proportional to 474,877.76, 655,331.16 and 260,017.76

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Solution

The fourth proportional to 474,877.76, 655,331.16 and 260,017.76 is: 358,824.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,877.76 : 655,331.16 = 260,017.76 : x
  2. Step 2: Convert to fraction form
    474,877.76/655,331.16 = 260,017.76/x
  3. Step 3: Cross multiply
    474,877.76x = 655,331.16 × 260,017.76
  4. Step 4: Simplify right side
    474,877.76x = 170,397,740,281.40
  5. Step 5: Solve for x
    x = 170,397,740,281.40/474,877.76
  6. Step 6: Final answer
    x = 358,824.43

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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.