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Finding the Fourth Proportional to 305,224.80, 457,707.60 and 147,501.60

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Solution

The fourth proportional to 305,224.80, 457,707.60 and 147,501.60 is: 221,189.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,224.80 : 457,707.60 = 147,501.60 : x
  2. Step 2: Convert to fraction form
    305,224.80/457,707.60 = 147,501.60/x
  3. Step 3: Cross multiply
    305,224.80x = 457,707.60 × 147,501.60
  4. Step 4: Simplify right side
    305,224.80x = 67,512,603,332.16
  5. Step 5: Solve for x
    x = 67,512,603,332.16/305,224.80
  6. Step 6: Final answer
    x = 221,189.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.