Home / 386,374.18-533,196.01-216,608.34

Finding the Fourth Proportional to 386,374.18, 533,196.01 and 216,608.34

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Solution

The fourth proportional to 386,374.18, 533,196.01 and 216,608.34 is: 298,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,374.18 : 533,196.01 = 216,608.34 : x
  2. Step 2: Convert to fraction form
    386,374.18/533,196.01 = 216,608.34/x
  3. Step 3: Cross multiply
    386,374.18x = 533,196.01 × 216,608.34
  4. Step 4: Simplify right side
    386,374.18x = 115,494,702,620.72
  5. Step 5: Solve for x
    x = 115,494,702,620.72/386,374.18
  6. Step 6: Final answer
    x = 298,919.31

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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.