Home / 778,186.42-1,073,913.69-438,654.58

Finding the Fourth Proportional to 778,186.42, 1,073,913.69 and 438,654.58

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Solution

The fourth proportional to 778,186.42, 1,073,913.69 and 438,654.58 is: 605,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,186.42 : 1,073,913.69 = 438,654.58 : x
  2. Step 2: Convert to fraction form
    778,186.42/1,073,913.69 = 438,654.58/x
  3. Step 3: Cross multiply
    778,186.42x = 1,073,913.69 × 438,654.58
  4. Step 4: Simplify right side
    778,186.42x = 471,077,158,643.20
  5. Step 5: Solve for x
    x = 471,077,158,643.20/778,186.42
  6. Step 6: Final answer
    x = 605,352.58

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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.