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Finding the Fourth Proportional to 475,355.95, 655,991.66 and 260,496.50

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Solution

The fourth proportional to 475,355.95, 655,991.66 and 260,496.50 is: 359,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,355.95 : 655,991.66 = 260,496.50 : x
  2. Step 2: Convert to fraction form
    475,355.95/655,991.66 = 260,496.50/x
  3. Step 3: Cross multiply
    475,355.95x = 655,991.66 × 260,496.50
  4. Step 4: Simplify right side
    475,355.95x = 170,883,528,830.47
  5. Step 5: Solve for x
    x = 170,883,528,830.47/475,355.95
  6. Step 6: Final answer
    x = 359,485.41

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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.