Home / 438,815.64-658,461.60-186,238.20

Finding the Fourth Proportional to 438,815.64, 658,461.60 and 186,238.20

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Solution

The fourth proportional to 438,815.64, 658,461.60 and 186,238.20 is: 279,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,815.64 : 658,461.60 = 186,238.20 : x
  2. Step 2: Convert to fraction form
    438,815.64/658,461.60 = 186,238.20/x
  3. Step 3: Cross multiply
    438,815.64x = 658,461.60 × 186,238.20
  4. Step 4: Simplify right side
    438,815.64x = 122,630,703,153.12
  5. Step 5: Solve for x
    x = 122,630,703,153.12/438,815.64
  6. Step 6: Final answer
    x = 279,458.37

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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.