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Finding the Fourth Proportional to 621,804.40, 932,706.60 and 621,804.40

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Solution

The fourth proportional to 621,804.40, 932,706.60 and 621,804.40 is: 932,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,804.40 : 932,706.60 = 621,804.40 : x
  2. Step 2: Convert to fraction form
    621,804.40/932,706.60 = 621,804.40/x
  3. Step 3: Cross multiply
    621,804.40x = 932,706.60 × 621,804.40
  4. Step 4: Simplify right side
    621,804.40x = 579,961,067,789.04
  5. Step 5: Solve for x
    x = 579,961,067,789.04/621,804.40
  6. Step 6: Final answer
    x = 932,706.60

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Half scale
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Double scale
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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.