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Finding the Fourth Proportional to 617,928.80, 925,078.80 and 460,853.60

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Solution

The fourth proportional to 617,928.80, 925,078.80 and 460,853.60 is: 689,927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,928.80 : 925,078.80 = 460,853.60 : x
  2. Step 2: Convert to fraction form
    617,928.80/925,078.80 = 460,853.60/x
  3. Step 3: Cross multiply
    617,928.80x = 925,078.80 × 460,853.60
  4. Step 4: Simplify right side
    617,928.80x = 426,325,895,263.68
  5. Step 5: Solve for x
    x = 426,325,895,263.68/617,928.80
  6. Step 6: Final answer
    x = 689,927.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.