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Finding the Fourth Proportional to 545,235.81, 752,795.79 and 341,369.15

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Solution

The fourth proportional to 545,235.81, 752,795.79 and 341,369.15 is: 471,321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,235.81 : 752,795.79 = 341,369.15 : x
  2. Step 2: Convert to fraction form
    545,235.81/752,795.79 = 341,369.15/x
  3. Step 3: Cross multiply
    545,235.81x = 752,795.79 × 341,369.15
  4. Step 4: Simplify right side
    545,235.81x = 256,981,255,191.90
  5. Step 5: Solve for x
    x = 256,981,255,191.90/545,235.81
  6. Step 6: Final answer
    x = 471,321.31

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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.