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Finding the Fourth Proportional to 589,597.84, 813,660.84 and 321,343.12

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Solution

The fourth proportional to 589,597.84, 813,660.84 and 321,343.12 is: 443,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,597.84 : 813,660.84 = 321,343.12 : x
  2. Step 2: Convert to fraction form
    589,597.84/813,660.84 = 321,343.12/x
  3. Step 3: Cross multiply
    589,597.84x = 813,660.84 × 321,343.12
  4. Step 4: Simplify right side
    589,597.84x = 261,464,312,947.42
  5. Step 5: Solve for x
    x = 261,464,312,947.42/589,597.84
  6. Step 6: Final answer
    x = 443,462.13

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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.