Home / 935,335.89-1,289,902.73-612,928.89

Finding the Fourth Proportional to 935,335.89, 1,289,902.73 and 612,928.89

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Solution

The fourth proportional to 935,335.89, 1,289,902.73 and 612,928.89 is: 845,277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,335.89 : 1,289,902.73 = 612,928.89 : x
  2. Step 2: Convert to fraction form
    935,335.89/1,289,902.73 = 612,928.89/x
  3. Step 3: Cross multiply
    935,335.89x = 1,289,902.73 × 612,928.89
  4. Step 4: Simplify right side
    935,335.89x = 790,618,645,442.23
  5. Step 5: Solve for x
    x = 790,618,645,442.23/935,335.89
  6. Step 6: Final answer
    x = 845,277.78

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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.