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Finding the Fourth Proportional to 475,135.04, 655,686.32 and 260,275.05

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Solution

The fourth proportional to 475,135.04, 655,686.32 and 260,275.05 is: 359,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,135.04 : 655,686.32 = 260,275.05 : x
  2. Step 2: Convert to fraction form
    475,135.04/655,686.32 = 260,275.05/x
  3. Step 3: Cross multiply
    475,135.04x = 655,686.32 × 260,275.05
  4. Step 4: Simplify right side
    475,135.04x = 170,658,789,722.32
  5. Step 5: Solve for x
    x = 170,658,789,722.32/475,135.04
  6. Step 6: Final answer
    x = 359,179.55

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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.