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Finding the Fourth Proportional to 665,601.40, 998,402.10 and 506,169.10

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Solution

The fourth proportional to 665,601.40, 998,402.10 and 506,169.10 is: 759,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,601.40 : 998,402.10 = 506,169.10 : x
  2. Step 2: Convert to fraction form
    665,601.40/998,402.10 = 506,169.10/x
  3. Step 3: Cross multiply
    665,601.40x = 998,402.10 × 506,169.10
  4. Step 4: Simplify right side
    665,601.40x = 505,360,292,395.11
  5. Step 5: Solve for x
    x = 505,360,292,395.11/665,601.40
  6. Step 6: Final answer
    x = 759,253.65

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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.