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Finding the Fourth Proportional to 621,804.70, 932,707.05 and 201,123.10

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Solution

The fourth proportional to 621,804.70, 932,707.05 and 201,123.10 is: 301,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,804.70 : 932,707.05 = 201,123.10 : x
  2. Step 2: Convert to fraction form
    621,804.70/932,707.05 = 201,123.10/x
  3. Step 3: Cross multiply
    621,804.70x = 932,707.05 × 201,123.10
  4. Step 4: Simplify right side
    621,804.70x = 187,588,933,287.86
  5. Step 5: Solve for x
    x = 187,588,933,287.86/621,804.70
  6. Step 6: Final answer
    x = 301,684.65

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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.