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Finding the Fourth Proportional to 304,839.80, 457,259.70 and 83,223.80

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Solution

The fourth proportional to 304,839.80, 457,259.70 and 83,223.80 is: 124,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,839.80 : 457,259.70 = 83,223.80 : x
  2. Step 2: Convert to fraction form
    304,839.80/457,259.70 = 83,223.80/x
  3. Step 3: Cross multiply
    304,839.80x = 457,259.70 × 83,223.80
  4. Step 4: Simplify right side
    304,839.80x = 38,054,889,820.86
  5. Step 5: Solve for x
    x = 38,054,889,820.86/304,839.80
  6. Step 6: Final answer
    x = 124,835.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.