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Finding the Fourth Proportional to 617,878.90, 926,818.35 and 262,803.70

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Solution

The fourth proportional to 617,878.90, 926,818.35 and 262,803.70 is: 394,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,878.90 : 926,818.35 = 262,803.70 : x
  2. Step 2: Convert to fraction form
    617,878.90/926,818.35 = 262,803.70/x
  3. Step 3: Cross multiply
    617,878.90x = 926,818.35 × 262,803.70
  4. Step 4: Simplify right side
    617,878.90x = 243,571,291,607.90
  5. Step 5: Solve for x
    x = 243,571,291,607.90/617,878.90
  6. Step 6: Final answer
    x = 394,205.55

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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.