Home / 999,632.56-1,378,058.14-712,654.42

Finding the Fourth Proportional to 999,632.56, 1,378,058.14 and 712,654.42

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Solution

The fourth proportional to 999,632.56, 1,378,058.14 and 712,654.42 is: 982,440.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,632.56 : 1,378,058.14 = 712,654.42 : x
  2. Step 2: Convert to fraction form
    999,632.56/1,378,058.14 = 712,654.42/x
  3. Step 3: Cross multiply
    999,632.56x = 1,378,058.14 × 712,654.42
  4. Step 4: Simplify right side
    999,632.56x = 982,079,214,034.42
  5. Step 5: Solve for x
    x = 982,079,214,034.42/999,632.56
  6. Step 6: Final answer
    x = 982,440.21

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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.