Home / 713,966.24-985,277.04-391,706.12

Finding the Fourth Proportional to 713,966.24, 985,277.04 and 391,706.12

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Solution

The fourth proportional to 713,966.24, 985,277.04 and 391,706.12 is: 540,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,966.24 : 985,277.04 = 391,706.12 : x
  2. Step 2: Convert to fraction form
    713,966.24/985,277.04 = 391,706.12/x
  3. Step 3: Cross multiply
    713,966.24x = 985,277.04 × 391,706.12
  4. Step 4: Simplify right side
    713,966.24x = 385,939,046,463.49
  5. Step 5: Solve for x
    x = 385,939,046,463.49/713,966.24
  6. Step 6: Final answer
    x = 540,556.44

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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.