Home / 728,994.33-1,004,866.61-499,154.15

Finding the Fourth Proportional to 728,994.33, 1,004,866.61 and 499,154.15

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Solution

The fourth proportional to 728,994.33, 1,004,866.61 and 499,154.15 is: 688,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,994.33 : 1,004,866.61 = 499,154.15 : x
  2. Step 2: Convert to fraction form
    728,994.33/1,004,866.61 = 499,154.15/x
  3. Step 3: Cross multiply
    728,994.33x = 1,004,866.61 × 499,154.15
  4. Step 4: Simplify right side
    728,994.33x = 501,583,338,577.93
  5. Step 5: Solve for x
    x = 501,583,338,577.93/728,994.33
  6. Step 6: Final answer
    x = 688,048.34

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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.