Home / 276,985.60-415,478.40-171,923.20

Finding the Fourth Proportional to 276,985.60, 415,478.40 and 171,923.20

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Solution

The fourth proportional to 276,985.60, 415,478.40 and 171,923.20 is: 257,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,985.60 : 415,478.40 = 171,923.20 : x
  2. Step 2: Convert to fraction form
    276,985.60/415,478.40 = 171,923.20/x
  3. Step 3: Cross multiply
    276,985.60x = 415,478.40 × 171,923.20
  4. Step 4: Simplify right side
    276,985.60x = 71,430,376,058.88
  5. Step 5: Solve for x
    x = 71,430,376,058.88/276,985.60
  6. Step 6: Final answer
    x = 257,884.80

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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.