Home / 421,111.02-581,192.48-268,100.34

Finding the Fourth Proportional to 421,111.02, 581,192.48 and 268,100.34

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Solution

The fourth proportional to 421,111.02, 581,192.48 and 268,100.34 is: 370,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,111.02 : 581,192.48 = 268,100.34 : x
  2. Step 2: Convert to fraction form
    421,111.02/581,192.48 = 268,100.34/x
  3. Step 3: Cross multiply
    421,111.02x = 581,192.48 × 268,100.34
  4. Step 4: Simplify right side
    421,111.02x = 155,817,901,493.44
  5. Step 5: Solve for x
    x = 155,817,901,493.44/421,111.02
  6. Step 6: Final answer
    x = 370,016.20

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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.