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Finding the Fourth Proportional to 434,351.78, 599,405.06 and 243,366.54

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Solution

The fourth proportional to 434,351.78, 599,405.06 and 243,366.54 is: 335,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,351.78 : 599,405.06 = 243,366.54 : x
  2. Step 2: Convert to fraction form
    434,351.78/599,405.06 = 243,366.54/x
  3. Step 3: Cross multiply
    434,351.78x = 599,405.06 × 243,366.54
  4. Step 4: Simplify right side
    434,351.78x = 145,875,136,412.05
  5. Step 5: Solve for x
    x = 145,875,136,412.05/434,351.78
  6. Step 6: Final answer
    x = 335,845.60

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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.