Home / 840,780.76-1,160,302.08-458,832.16

Finding the Fourth Proportional to 840,780.76, 1,160,302.08 and 458,832.16

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Solution

The fourth proportional to 840,780.76, 1,160,302.08 and 458,832.16 is: 633,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,780.76 : 1,160,302.08 = 458,832.16 : x
  2. Step 2: Convert to fraction form
    840,780.76/1,160,302.08 = 458,832.16/x
  3. Step 3: Cross multiply
    840,780.76x = 1,160,302.08 × 458,832.16
  4. Step 4: Simplify right side
    840,780.76x = 532,383,909,618.89
  5. Step 5: Solve for x
    x = 532,383,909,618.89/840,780.76
  6. Step 6: Final answer
    x = 633,201.82

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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.