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Finding the Fourth Proportional to 451,613.09, 623,226.93 and 247,665.45

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Solution

The fourth proportional to 451,613.09, 623,226.93 and 247,665.45 is: 341,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,613.09 : 623,226.93 = 247,665.45 : x
  2. Step 2: Convert to fraction form
    451,613.09/623,226.93 = 247,665.45/x
  3. Step 3: Cross multiply
    451,613.09x = 623,226.93 × 247,665.45
  4. Step 4: Simplify right side
    451,613.09x = 154,351,778,070.57
  5. Step 5: Solve for x
    x = 154,351,778,070.57/451,613.09
  6. Step 6: Final answer
    x = 341,778.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.