Home / 531,857.19-733,962.92-290,140.74

Finding the Fourth Proportional to 531,857.19, 733,962.92 and 290,140.74

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Solution

The fourth proportional to 531,857.19, 733,962.92 and 290,140.74 is: 400,394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,857.19 : 733,962.92 = 290,140.74 : x
  2. Step 2: Convert to fraction form
    531,857.19/733,962.92 = 290,140.74/x
  3. Step 3: Cross multiply
    531,857.19x = 733,962.92 × 290,140.74
  4. Step 4: Simplify right side
    531,857.19x = 212,952,541,071.55
  5. Step 5: Solve for x
    x = 212,952,541,071.55/531,857.19
  6. Step 6: Final answer
    x = 400,394.21

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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.