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Finding the Fourth Proportional to 475,155.99, 655,722.70 and 260,281.87

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Solution

The fourth proportional to 475,155.99, 655,722.70 and 260,281.87 is: 359,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,155.99 : 655,722.70 = 260,281.87 : x
  2. Step 2: Convert to fraction form
    475,155.99/655,722.70 = 260,281.87/x
  3. Step 3: Cross multiply
    475,155.99x = 655,722.70 × 260,281.87
  4. Step 4: Simplify right side
    475,155.99x = 170,672,725,977.43
  5. Step 5: Solve for x
    x = 170,672,725,977.43/475,155.99
  6. Step 6: Final answer
    x = 359,193.05

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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.