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Finding the Fourth Proportional to 649,295.45, 973,943.16 and 175,980.80

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Solution

The fourth proportional to 649,295.45, 973,943.16 and 175,980.80 is: 263,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,295.45 : 973,943.16 = 175,980.80 : x
  2. Step 2: Convert to fraction form
    649,295.45/973,943.16 = 175,980.80/x
  3. Step 3: Cross multiply
    649,295.45x = 973,943.16 × 175,980.80
  4. Step 4: Simplify right side
    649,295.45x = 171,395,296,451.33
  5. Step 5: Solve for x
    x = 171,395,296,451.33/649,295.45
  6. Step 6: Final answer
    x = 263,971.20

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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.