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Finding the Fourth Proportional to 475,210.40, 655,791.18 and 260,345.84

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Solution

The fourth proportional to 475,210.40, 655,791.18 and 260,345.84 is: 359,277.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,210.40 : 655,791.18 = 260,345.84 : x
  2. Step 2: Convert to fraction form
    475,210.40/655,791.18 = 260,345.84/x
  3. Step 3: Cross multiply
    475,210.40x = 655,791.18 × 260,345.84
  4. Step 4: Simplify right side
    475,210.40x = 170,732,505,621.69
  5. Step 5: Solve for x
    x = 170,732,505,621.69/475,210.40
  6. Step 6: Final answer
    x = 359,277.71

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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.