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Finding the Fourth Proportional to 608,742.80, 913,114.20 and 293,814.80

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Solution

The fourth proportional to 608,742.80, 913,114.20 and 293,814.80 is: 440,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,742.80 : 913,114.20 = 293,814.80 : x
  2. Step 2: Convert to fraction form
    608,742.80/913,114.20 = 293,814.80/x
  3. Step 3: Cross multiply
    608,742.80x = 913,114.20 × 293,814.80
  4. Step 4: Simplify right side
    608,742.80x = 268,286,466,050.16
  5. Step 5: Solve for x
    x = 268,286,466,050.16/608,742.80
  6. Step 6: Final answer
    x = 440,722.20

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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.