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Finding the Fourth Proportional to 593,143.64, 818,538.58 and 321,213.64

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Solution

The fourth proportional to 593,143.64, 818,538.58 and 321,213.64 is: 443,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,143.64 : 818,538.58 = 321,213.64 : x
  2. Step 2: Convert to fraction form
    593,143.64/818,538.58 = 321,213.64/x
  3. Step 3: Cross multiply
    593,143.64x = 818,538.58 × 321,213.64
  4. Step 4: Simplify right side
    593,143.64x = 262,925,756,762.23
  5. Step 5: Solve for x
    x = 262,925,756,762.23/593,143.64
  6. Step 6: Final answer
    x = 443,275.02

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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.