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Finding the Fourth Proportional to 933,260, 1,288,296.88 and 627,513.60

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Solution

The fourth proportional to 933,260, 1,288,296.88 and 627,513.60 is: 866,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,260 : 1,288,296.88 = 627,513.60 : x
  2. Step 2: Convert to fraction form
    933,260/1,288,296.88 = 627,513.60/x
  3. Step 3: Cross multiply
    933,260x = 1,288,296.88 × 627,513.60
  4. Step 4: Simplify right side
    933,260x = 808,423,813,037.57
  5. Step 5: Solve for x
    x = 808,423,813,037.57/933,260
  6. Step 6: Final answer
    x = 866,236.43

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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.