Home / 676,701.54-933,786.12-390,166.27

Finding the Fourth Proportional to 676,701.54, 933,786.12 and 390,166.27

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Solution

The fourth proportional to 676,701.54, 933,786.12 and 390,166.27 is: 538,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,701.54 : 933,786.12 = 390,166.27 : x
  2. Step 2: Convert to fraction form
    676,701.54/933,786.12 = 390,166.27/x
  3. Step 3: Cross multiply
    676,701.54x = 933,786.12 × 390,166.27
  4. Step 4: Simplify right side
    676,701.54x = 364,331,846,546.83
  5. Step 5: Solve for x
    x = 364,331,846,546.83/676,701.54
  6. Step 6: Final answer
    x = 538,393.70

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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.