Home / 329,985.52-455,035.80-195,823.60

Finding the Fourth Proportional to 329,985.52, 455,035.80 and 195,823.60

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Solution

The fourth proportional to 329,985.52, 455,035.80 and 195,823.60 is: 270,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,985.52 : 455,035.80 = 195,823.60 : x
  2. Step 2: Convert to fraction form
    329,985.52/455,035.80 = 195,823.60/x
  3. Step 3: Cross multiply
    329,985.52x = 455,035.80 × 195,823.60
  4. Step 4: Simplify right side
    329,985.52x = 89,106,748,484.88
  5. Step 5: Solve for x
    x = 89,106,748,484.88/329,985.52
  6. Step 6: Final answer
    x = 270,032.30

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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.