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Finding the Fourth Proportional to 292,816.20, 438,568.20 and 240,328.20

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Solution

The fourth proportional to 292,816.20, 438,568.20 and 240,328.20 is: 359,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,816.20 : 438,568.20 = 240,328.20 : x
  2. Step 2: Convert to fraction form
    292,816.20/438,568.20 = 240,328.20/x
  3. Step 3: Cross multiply
    292,816.20x = 438,568.20 × 240,328.20
  4. Step 4: Simplify right side
    292,816.20x = 105,400,306,083.24
  5. Step 5: Solve for x
    x = 105,400,306,083.24/292,816.20
  6. Step 6: Final answer
    x = 359,953.81

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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.