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Finding the Fourth Proportional to 617,926.90, 926,890.35 and 262,851.70

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Solution

The fourth proportional to 617,926.90, 926,890.35 and 262,851.70 is: 394,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,926.90 : 926,890.35 = 262,851.70 : x
  2. Step 2: Convert to fraction form
    617,926.90/926,890.35 = 262,851.70/x
  3. Step 3: Cross multiply
    617,926.90x = 926,890.35 × 262,851.70
  4. Step 4: Simplify right side
    617,926.90x = 243,634,704,211.10
  5. Step 5: Solve for x
    x = 243,634,704,211.10/617,926.90
  6. Step 6: Final answer
    x = 394,277.55

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Similar ratio
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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.