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Finding the Fourth Proportional to 593,408.42, 818,902.65 and 321,483.21

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Solution

The fourth proportional to 593,408.42, 818,902.65 and 321,483.21 is: 443,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,408.42 : 818,902.65 = 321,483.21 : x
  2. Step 2: Convert to fraction form
    593,408.42/818,902.65 = 321,483.21/x
  3. Step 3: Cross multiply
    593,408.42x = 818,902.65 × 321,483.21
  4. Step 4: Simplify right side
    593,408.42x = 263,263,452,599.51
  5. Step 5: Solve for x
    x = 263,263,452,599.51/593,408.42
  6. Step 6: Final answer
    x = 443,646.31

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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.