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Finding the Fourth Proportional to 617,480.55, 926,193.02 and 257,503.19

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Solution

The fourth proportional to 617,480.55, 926,193.02 and 257,503.19 is: 386,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,480.55 : 926,193.02 = 257,503.19 : x
  2. Step 2: Convert to fraction form
    617,480.55/926,193.02 = 257,503.19/x
  3. Step 3: Cross multiply
    617,480.55x = 926,193.02 × 257,503.19
  4. Step 4: Simplify right side
    617,480.55x = 238,497,651,287.25
  5. Step 5: Solve for x
    x = 238,497,651,287.25/617,480.55
  6. Step 6: Final answer
    x = 386,243.18

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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.