Home / 531,934.09-734,066.55-290,215.91

Finding the Fourth Proportional to 531,934.09, 734,066.55 and 290,215.91

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Solution

The fourth proportional to 531,934.09, 734,066.55 and 290,215.91 is: 400,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,934.09 : 734,066.55 = 290,215.91 : x
  2. Step 2: Convert to fraction form
    531,934.09/734,066.55 = 290,215.91/x
  3. Step 3: Cross multiply
    531,934.09x = 734,066.55 × 290,215.91
  4. Step 4: Simplify right side
    531,934.09x = 213,037,793,643.98
  5. Step 5: Solve for x
    x = 213,037,793,643.98/531,934.09
  6. Step 6: Final answer
    x = 400,496.60

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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.