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Finding the Fourth Proportional to 434,318.63, 599,384.22 and 243,393.53

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Solution

The fourth proportional to 434,318.63, 599,384.22 and 243,393.53 is: 335,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,318.63 : 599,384.22 = 243,393.53 : x
  2. Step 2: Convert to fraction form
    434,318.63/599,384.22 = 243,393.53/x
  3. Step 3: Cross multiply
    434,318.63x = 599,384.22 × 243,393.53
  4. Step 4: Simplify right side
    434,318.63x = 145,886,241,132.10
  5. Step 5: Solve for x
    x = 145,886,241,132.10/434,318.63
  6. Step 6: Final answer
    x = 335,896.81

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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.