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Finding the Fourth Proportional to 416,868.72, 575,289.42 and 255,812.76

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Solution

The fourth proportional to 416,868.72, 575,289.42 and 255,812.76 is: 353,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,868.72 : 575,289.42 = 255,812.76 : x
  2. Step 2: Convert to fraction form
    416,868.72/575,289.42 = 255,812.76/x
  3. Step 3: Cross multiply
    416,868.72x = 575,289.42 × 255,812.76
  4. Step 4: Simplify right side
    416,868.72x = 147,166,374,329.00
  5. Step 5: Solve for x
    x = 147,166,374,329.00/416,868.72
  6. Step 6: Final answer
    x = 353,028.11

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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.