Home / 781,582.65-1,078,697.33-450,374.14

Finding the Fourth Proportional to 781,582.65, 1,078,697.33 and 450,374.14

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Solution

The fourth proportional to 781,582.65, 1,078,697.33 and 450,374.14 is: 621,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,582.65 : 1,078,697.33 = 450,374.14 : x
  2. Step 2: Convert to fraction form
    781,582.65/1,078,697.33 = 450,374.14/x
  3. Step 3: Cross multiply
    781,582.65x = 1,078,697.33 × 450,374.14
  4. Step 4: Simplify right side
    781,582.65x = 485,817,383,104.45
  5. Step 5: Solve for x
    x = 485,817,383,104.45/781,582.65
  6. Step 6: Final answer
    x = 621,581.59

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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.