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Finding the Fourth Proportional to 458,883.23, 688,762.64 and 281,736.23

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Solution

The fourth proportional to 458,883.23, 688,762.64 and 281,736.23 is: 422,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,883.23 : 688,762.64 = 281,736.23 : x
  2. Step 2: Convert to fraction form
    458,883.23/688,762.64 = 281,736.23/x
  3. Step 3: Cross multiply
    458,883.23x = 688,762.64 × 281,736.23
  4. Step 4: Simplify right side
    458,883.23x = 194,049,386,818.98
  5. Step 5: Solve for x
    x = 194,049,386,818.98/458,883.23
  6. Step 6: Final answer
    x = 422,873.13

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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.