Home / 305,347.16-421,589.40-233,602.22

Finding the Fourth Proportional to 305,347.16, 421,589.40 and 233,602.22

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Solution

The fourth proportional to 305,347.16, 421,589.40 and 233,602.22 is: 322,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,347.16 : 421,589.40 = 233,602.22 : x
  2. Step 2: Convert to fraction form
    305,347.16/421,589.40 = 233,602.22/x
  3. Step 3: Cross multiply
    305,347.16x = 421,589.40 × 233,602.22
  4. Step 4: Simplify right side
    305,347.16x = 98,484,219,768.47
  5. Step 5: Solve for x
    x = 98,484,219,768.47/305,347.16
  6. Step 6: Final answer
    x = 322,531.97

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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.