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Finding the Fourth Proportional to 451,783.17, 623,414.58 and 270,490.39

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Solution

The fourth proportional to 451,783.17, 623,414.58 and 270,490.39 is: 373,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,783.17 : 623,414.58 = 270,490.39 : x
  2. Step 2: Convert to fraction form
    451,783.17/623,414.58 = 270,490.39/x
  3. Step 3: Cross multiply
    451,783.17x = 623,414.58 × 270,490.39
  4. Step 4: Simplify right side
    451,783.17x = 168,627,650,303.01
  5. Step 5: Solve for x
    x = 168,627,650,303.01/451,783.17
  6. Step 6: Final answer
    x = 373,249.07

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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.