Home / 646,305.39-891,936.78-359,819.19

Finding the Fourth Proportional to 646,305.39, 891,936.78 and 359,819.19

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Solution

The fourth proportional to 646,305.39, 891,936.78 and 359,819.19 is: 496,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,305.39 : 891,936.78 = 359,819.19 : x
  2. Step 2: Convert to fraction form
    646,305.39/891,936.78 = 359,819.19/x
  3. Step 3: Cross multiply
    646,305.39x = 891,936.78 × 359,819.19
  4. Step 4: Simplify right side
    646,305.39x = 320,935,969,710.81
  5. Step 5: Solve for x
    x = 320,935,969,710.81/646,305.39
  6. Step 6: Final answer
    x = 496,570.16

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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.