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Finding the Fourth Proportional to 326,082.10, 489,123.15 and 201,666.10

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Solution

The fourth proportional to 326,082.10, 489,123.15 and 201,666.10 is: 302,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,082.10 : 489,123.15 = 201,666.10 : x
  2. Step 2: Convert to fraction form
    326,082.10/489,123.15 = 201,666.10/x
  3. Step 3: Cross multiply
    326,082.10x = 489,123.15 × 201,666.10
  4. Step 4: Simplify right side
    326,082.10x = 98,639,558,080.22
  5. Step 5: Solve for x
    x = 98,639,558,080.22/326,082.10
  6. Step 6: Final answer
    x = 302,499.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.