Home / 382,881.18-528,376.05-213,111.66

Finding the Fourth Proportional to 382,881.18, 528,376.05 and 213,111.66

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Solution

The fourth proportional to 382,881.18, 528,376.05 and 213,111.66 is: 294,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,881.18 : 528,376.05 = 213,111.66 : x
  2. Step 2: Convert to fraction form
    382,881.18/528,376.05 = 213,111.66/x
  3. Step 3: Cross multiply
    382,881.18x = 528,376.05 × 213,111.66
  4. Step 4: Simplify right side
    382,881.18x = 112,603,097,119.74
  5. Step 5: Solve for x
    x = 112,603,097,119.74/382,881.18
  6. Step 6: Final answer
    x = 294,094.10

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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.