Home / 419,336.16-578,283.21-281,825.70

Finding the Fourth Proportional to 419,336.16, 578,283.21 and 281,825.70

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Solution

The fourth proportional to 419,336.16, 578,283.21 and 281,825.70 is: 388,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,336.16 : 578,283.21 = 281,825.70 : x
  2. Step 2: Convert to fraction form
    419,336.16/578,283.21 = 281,825.70/x
  3. Step 3: Cross multiply
    419,336.16x = 578,283.21 × 281,825.70
  4. Step 4: Simplify right side
    419,336.16x = 162,975,070,456.50
  5. Step 5: Solve for x
    x = 162,975,070,456.50/419,336.16
  6. Step 6: Final answer
    x = 388,650.17

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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.