Home / 575,985.19-863,890.31-221,166.31

Finding the Fourth Proportional to 575,985.19, 863,890.31 and 221,166.31

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Solution

The fourth proportional to 575,985.19, 863,890.31 and 221,166.31 is: 331,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,985.19 : 863,890.31 = 221,166.31 : x
  2. Step 2: Convert to fraction form
    575,985.19/863,890.31 = 221,166.31/x
  3. Step 3: Cross multiply
    575,985.19x = 863,890.31 × 221,166.31
  4. Step 4: Simplify right side
    575,985.19x = 191,063,431,001.63
  5. Step 5: Solve for x
    x = 191,063,431,001.63/575,985.19
  6. Step 6: Final answer
    x = 331,715.87

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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.