Home / 686,101.13-946,819.55-417,829.13

Finding the Fourth Proportional to 686,101.13, 946,819.55 and 417,829.13

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Solution

The fourth proportional to 686,101.13, 946,819.55 and 417,829.13 is: 576,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,101.13 : 946,819.55 = 417,829.13 : x
  2. Step 2: Convert to fraction form
    686,101.13/946,819.55 = 417,829.13/x
  3. Step 3: Cross multiply
    686,101.13x = 946,819.55 × 417,829.13
  4. Step 4: Simplify right side
    686,101.13x = 395,608,788,843.49
  5. Step 5: Solve for x
    x = 395,608,788,843.49/686,101.13
  6. Step 6: Final answer
    x = 576,604.19

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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.