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Finding the Fourth Proportional to 891,862, 1,230,763.30 and 483,953.46

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Solution

The fourth proportional to 891,862, 1,230,763.30 and 483,953.46 is: 667,852.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,862 : 1,230,763.30 = 483,953.46 : x
  2. Step 2: Convert to fraction form
    891,862/1,230,763.30 = 483,953.46/x
  3. Step 3: Cross multiply
    891,862x = 1,230,763.30 × 483,953.46
  4. Step 4: Simplify right side
    891,862x = 595,632,157,476.02
  5. Step 5: Solve for x
    x = 595,632,157,476.02/891,862
  6. Step 6: Final answer
    x = 667,852.38

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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.