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Finding the Fourth Proportional to 434,363.48, 599,445.60 and 243,438.38

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Solution

The fourth proportional to 434,363.48, 599,445.60 and 243,438.38 is: 335,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,363.48 : 599,445.60 = 243,438.38 : x
  2. Step 2: Convert to fraction form
    434,363.48/599,445.60 = 243,438.38/x
  3. Step 3: Cross multiply
    434,363.48x = 599,445.60 × 243,438.38
  4. Step 4: Simplify right side
    434,363.48x = 145,928,065,762.13
  5. Step 5: Solve for x
    x = 145,928,065,762.13/434,363.48
  6. Step 6: Final answer
    x = 335,958.41

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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.