Home / 778,098.68-1,073,784.38-438,566.92

Finding the Fourth Proportional to 778,098.68, 1,073,784.38 and 438,566.92

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Solution

The fourth proportional to 778,098.68, 1,073,784.38 and 438,566.92 is: 605,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,098.68 : 1,073,784.38 = 438,566.92 : x
  2. Step 2: Convert to fraction form
    778,098.68/1,073,784.38 = 438,566.92/x
  3. Step 3: Cross multiply
    778,098.68x = 1,073,784.38 × 438,566.92
  4. Step 4: Simplify right side
    778,098.68x = 470,926,308,280.71
  5. Step 5: Solve for x
    x = 470,926,308,280.71/778,098.68
  6. Step 6: Final answer
    x = 605,226.97

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Double scale
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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.