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Finding the Fourth Proportional to 434,486.90, 599,616.56 and 243,512.59

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Solution

The fourth proportional to 434,486.90, 599,616.56 and 243,512.59 is: 336,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,486.90 : 599,616.56 = 243,512.59 : x
  2. Step 2: Convert to fraction form
    434,486.90/599,616.56 = 243,512.59/x
  3. Step 3: Cross multiply
    434,486.90x = 599,616.56 × 243,512.59
  4. Step 4: Simplify right side
    434,486.90x = 146,014,181,532.49
  5. Step 5: Solve for x
    x = 146,014,181,532.49/434,486.90
  6. Step 6: Final answer
    x = 336,061.18

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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.