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Finding the Fourth Proportional to 819,860.17, 1,131,102.05 and 475,503.01

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Solution

The fourth proportional to 819,860.17, 1,131,102.05 and 475,503.01 is: 656,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,860.17 : 1,131,102.05 = 475,503.01 : x
  2. Step 2: Convert to fraction form
    819,860.17/1,131,102.05 = 475,503.01/x
  3. Step 3: Cross multiply
    819,860.17x = 1,131,102.05 × 475,503.01
  4. Step 4: Simplify right side
    819,860.17x = 537,842,425,524.25
  5. Step 5: Solve for x
    x = 537,842,425,524.25/819,860.17
  6. Step 6: Final answer
    x = 656,017.27

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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.