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Finding the Fourth Proportional to 346,514.48, 519,771.76 and 83,858.48

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Solution

The fourth proportional to 346,514.48, 519,771.76 and 83,858.48 is: 125,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,514.48 : 519,771.76 = 83,858.48 : x
  2. Step 2: Convert to fraction form
    346,514.48/519,771.76 = 83,858.48/x
  3. Step 3: Cross multiply
    346,514.48x = 519,771.76 × 83,858.48
  4. Step 4: Simplify right side
    346,514.48x = 43,587,269,740.52
  5. Step 5: Solve for x
    x = 43,587,269,740.52/346,514.48
  6. Step 6: Final answer
    x = 125,787.73

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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.