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Finding the Fourth Proportional to 544,554.20, 816,831.30 and 520,059.80

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Solution

The fourth proportional to 544,554.20, 816,831.30 and 520,059.80 is: 780,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,554.20 : 816,831.30 = 520,059.80 : x
  2. Step 2: Convert to fraction form
    544,554.20/816,831.30 = 520,059.80/x
  3. Step 3: Cross multiply
    544,554.20x = 816,831.30 × 520,059.80
  4. Step 4: Simplify right side
    544,554.20x = 424,801,122,511.74
  5. Step 5: Solve for x
    x = 424,801,122,511.74/544,554.20
  6. Step 6: Final answer
    x = 780,089.70

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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.