Home / 627,258.20-865,619.69-385,698.60

Finding the Fourth Proportional to 627,258.20, 865,619.69 and 385,698.60

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Solution

The fourth proportional to 627,258.20, 865,619.69 and 385,698.60 is: 532,266.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,258.20 : 865,619.69 = 385,698.60 : x
  2. Step 2: Convert to fraction form
    627,258.20/865,619.69 = 385,698.60/x
  3. Step 3: Cross multiply
    627,258.20x = 865,619.69 × 385,698.60
  4. Step 4: Simplify right side
    627,258.20x = 333,868,300,636.94
  5. Step 5: Solve for x
    x = 333,868,300,636.94/627,258.20
  6. Step 6: Final answer
    x = 532,266.14

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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.