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Finding the Fourth Proportional to 621,753.30, 932,629.95 and 464,289.30

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Solution

The fourth proportional to 621,753.30, 932,629.95 and 464,289.30 is: 696,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,753.30 : 932,629.95 = 464,289.30 : x
  2. Step 2: Convert to fraction form
    621,753.30/932,629.95 = 464,289.30/x
  3. Step 3: Cross multiply
    621,753.30x = 932,629.95 × 464,289.30
  4. Step 4: Simplify right side
    621,753.30x = 433,010,106,644.54
  5. Step 5: Solve for x
    x = 433,010,106,644.54/621,753.30
  6. Step 6: Final answer
    x = 696,433.95

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Half scale
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Double scale
Find fourth proportional to 621,754.30, 932,631.45 and 464,290.30
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.