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Finding the Fourth Proportional to 348,637.56, 522,963.60 and 99,319.56

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Solution

The fourth proportional to 348,637.56, 522,963.60 and 99,319.56 is: 148,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,637.56 : 522,963.60 = 99,319.56 : x
  2. Step 2: Convert to fraction form
    348,637.56/522,963.60 = 99,319.56/x
  3. Step 3: Cross multiply
    348,637.56x = 522,963.60 × 99,319.56
  4. Step 4: Simplify right side
    348,637.56x = 51,940,514,648.02
  5. Step 5: Solve for x
    x = 51,940,514,648.02/348,637.56
  6. Step 6: Final answer
    x = 148,981.41

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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.