Home / 819,449.84-1,130,915.04-497,241.56

Finding the Fourth Proportional to 819,449.84, 1,130,915.04 and 497,241.56

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Solution

The fourth proportional to 819,449.84, 1,130,915.04 and 497,241.56 is: 686,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,449.84 : 1,130,915.04 = 497,241.56 : x
  2. Step 2: Convert to fraction form
    819,449.84/1,130,915.04 = 497,241.56/x
  3. Step 3: Cross multiply
    819,449.84x = 1,130,915.04 × 497,241.56
  4. Step 4: Simplify right side
    819,449.84x = 562,337,958,717.06
  5. Step 5: Solve for x
    x = 562,337,958,717.06/819,449.84
  6. Step 6: Final answer
    x = 686,238.41

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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.