Home / 475,128.29-655,678.92-260,269.85

Finding the Fourth Proportional to 475,128.29, 655,678.92 and 260,269.85

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Solution

The fourth proportional to 475,128.29, 655,678.92 and 260,269.85 is: 359,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,128.29 : 655,678.92 = 260,269.85 : x
  2. Step 2: Convert to fraction form
    475,128.29/655,678.92 = 260,269.85/x
  3. Step 3: Cross multiply
    475,128.29x = 655,678.92 × 260,269.85
  4. Step 4: Simplify right side
    475,128.29x = 170,653,450,878.17
  5. Step 5: Solve for x
    x = 170,653,450,878.17/475,128.29
  6. Step 6: Final answer
    x = 359,173.42

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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.