Home / 690,287.31-952,368.17-403,604.42

Finding the Fourth Proportional to 690,287.31, 952,368.17 and 403,604.42

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Solution

The fourth proportional to 690,287.31, 952,368.17 and 403,604.42 is: 556,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,287.31 : 952,368.17 = 403,604.42 : x
  2. Step 2: Convert to fraction form
    690,287.31/952,368.17 = 403,604.42/x
  3. Step 3: Cross multiply
    690,287.31x = 952,368.17 × 403,604.42
  4. Step 4: Simplify right side
    690,287.31x = 384,379,996,099.45
  5. Step 5: Solve for x
    x = 384,379,996,099.45/690,287.31
  6. Step 6: Final answer
    x = 556,840.59

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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.