Home / 838,780.56-1,157,565.60-631,678.14

Finding the Fourth Proportional to 838,780.56, 1,157,565.60 and 631,678.14

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Solution

The fourth proportional to 838,780.56, 1,157,565.60 and 631,678.14 is: 871,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,780.56 : 1,157,565.60 = 631,678.14 : x
  2. Step 2: Convert to fraction form
    838,780.56/1,157,565.60 = 631,678.14/x
  3. Step 3: Cross multiply
    838,780.56x = 1,157,565.60 × 631,678.14
  4. Step 4: Simplify right side
    838,780.56x = 731,208,885,135.98
  5. Step 5: Solve for x
    x = 731,208,885,135.98/838,780.56
  6. Step 6: Final answer
    x = 871,752.30

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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.