Home / 616,084.20-849,741.30-389,511

Finding the Fourth Proportional to 616,084.20, 849,741.30 and 389,511

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Solution

The fourth proportional to 616,084.20, 849,741.30 and 389,511 is: 537,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,084.20 : 849,741.30 = 389,511 : x
  2. Step 2: Convert to fraction form
    616,084.20/849,741.30 = 389,511/x
  3. Step 3: Cross multiply
    616,084.20x = 849,741.30 × 389,511
  4. Step 4: Simplify right side
    616,084.20x = 330,983,583,504.30
  5. Step 5: Solve for x
    x = 330,983,583,504.30/616,084.20
  6. Step 6: Final answer
    x = 537,237.58

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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.