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Finding the Fourth Proportional to 617,948.80, 926,059.20 and 491,804.80

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Solution

The fourth proportional to 617,948.80, 926,059.20 and 491,804.80 is: 737,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,948.80 : 926,059.20 = 491,804.80 : x
  2. Step 2: Convert to fraction form
    617,948.80/926,059.20 = 491,804.80/x
  3. Step 3: Cross multiply
    617,948.80x = 926,059.20 × 491,804.80
  4. Step 4: Simplify right side
    617,948.80x = 455,440,359,644.16
  5. Step 5: Solve for x
    x = 455,440,359,644.16/617,948.80
  6. Step 6: Final answer
    x = 737,019.57

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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.