Home / 531,818.11-733,913.67-290,101.78

Finding the Fourth Proportional to 531,818.11, 733,913.67 and 290,101.78

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Solution

The fourth proportional to 531,818.11, 733,913.67 and 290,101.78 is: 400,343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,818.11 : 733,913.67 = 290,101.78 : x
  2. Step 2: Convert to fraction form
    531,818.11/733,913.67 = 290,101.78/x
  3. Step 3: Cross multiply
    531,818.11x = 733,913.67 × 290,101.78
  4. Step 4: Simplify right side
    531,818.11x = 212,909,662,033.33
  5. Step 5: Solve for x
    x = 212,909,662,033.33/531,818.11
  6. Step 6: Final answer
    x = 400,343.01

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Double scale
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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.