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Finding the Fourth Proportional to 309,074.76, 463,678.74 and 95,838.39

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Solution

The fourth proportional to 309,074.76, 463,678.74 and 95,838.39 is: 143,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,074.76 : 463,678.74 = 95,838.39 : x
  2. Step 2: Convert to fraction form
    309,074.76/463,678.74 = 95,838.39/x
  3. Step 3: Cross multiply
    309,074.76x = 463,678.74 × 95,838.39
  4. Step 4: Simplify right side
    309,074.76x = 44,438,223,918.83
  5. Step 5: Solve for x
    x = 44,438,223,918.83/309,074.76
  6. Step 6: Final answer
    x = 143,778.24

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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.