Home / 678,768.46-935,932.86-433,430.64

Finding the Fourth Proportional to 678,768.46, 935,932.86 and 433,430.64

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Solution

The fourth proportional to 678,768.46, 935,932.86 and 433,430.64 is: 597,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,768.46 : 935,932.86 = 433,430.64 : x
  2. Step 2: Convert to fraction form
    678,768.46/935,932.86 = 433,430.64/x
  3. Step 3: Cross multiply
    678,768.46x = 935,932.86 × 433,430.64
  4. Step 4: Simplify right side
    678,768.46x = 405,661,978,506.83
  5. Step 5: Solve for x
    x = 405,661,978,506.83/678,768.46
  6. Step 6: Final answer
    x = 597,644.12

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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.