Home / 676,626.90-933,844.59-390,091.02

Finding the Fourth Proportional to 676,626.90, 933,844.59 and 390,091.02

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Solution

The fourth proportional to 676,626.90, 933,844.59 and 390,091.02 is: 538,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,626.90 : 933,844.59 = 390,091.02 : x
  2. Step 2: Convert to fraction form
    676,626.90/933,844.59 = 390,091.02/x
  3. Step 3: Cross multiply
    676,626.90x = 933,844.59 × 390,091.02
  4. Step 4: Simplify right side
    676,626.90x = 364,284,388,634.58
  5. Step 5: Solve for x
    x = 364,284,388,634.58/676,626.90
  6. Step 6: Final answer
    x = 538,382.95

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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.