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Finding the Fourth Proportional to 663,495.51, 995,243.96 and 164,859.51

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Solution

The fourth proportional to 663,495.51, 995,243.96 and 164,859.51 is: 247,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,495.51 : 995,243.96 = 164,859.51 : x
  2. Step 2: Convert to fraction form
    663,495.51/995,243.96 = 164,859.51/x
  3. Step 3: Cross multiply
    663,495.51x = 995,243.96 × 164,859.51
  4. Step 4: Simplify right side
    663,495.51x = 164,075,430,751.76
  5. Step 5: Solve for x
    x = 164,075,430,751.76/663,495.51
  6. Step 6: Final answer
    x = 247,289.44

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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.