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Finding the Fourth Proportional to 593,228.53, 818,650.65 and 321,290.20

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Solution

The fourth proportional to 593,228.53, 818,650.65 and 321,290.20 is: 443,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,228.53 : 818,650.65 = 321,290.20 : x
  2. Step 2: Convert to fraction form
    593,228.53/818,650.65 = 321,290.20/x
  3. Step 3: Cross multiply
    593,228.53x = 818,650.65 × 321,290.20
  4. Step 4: Simplify right side
    593,228.53x = 263,024,431,068.63
  5. Step 5: Solve for x
    x = 263,024,431,068.63/593,228.53
  6. Step 6: Final answer
    x = 443,377.92

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Double scale
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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.