Home / 690,618.32-953,593.80-540,144.08

Finding the Fourth Proportional to 690,618.32, 953,593.80 and 540,144.08

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Solution

The fourth proportional to 690,618.32, 953,593.80 and 540,144.08 is: 745,821.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,618.32 : 953,593.80 = 540,144.08 : x
  2. Step 2: Convert to fraction form
    690,618.32/953,593.80 = 540,144.08/x
  3. Step 3: Cross multiply
    690,618.32x = 953,593.80 × 540,144.08
  4. Step 4: Simplify right side
    690,618.32x = 515,078,045,794.70
  5. Step 5: Solve for x
    x = 515,078,045,794.70/690,618.32
  6. Step 6: Final answer
    x = 745,821.58

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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.