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Finding the Fourth Proportional to 403,609.40, 604,247.70 and 246,145.40

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Solution

The fourth proportional to 403,609.40, 604,247.70 and 246,145.40 is: 368,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,609.40 : 604,247.70 = 246,145.40 : x
  2. Step 2: Convert to fraction form
    403,609.40/604,247.70 = 246,145.40/x
  3. Step 3: Cross multiply
    403,609.40x = 604,247.70 × 246,145.40
  4. Step 4: Simplify right side
    403,609.40x = 148,732,791,815.58
  5. Step 5: Solve for x
    x = 148,732,791,815.58/403,609.40
  6. Step 6: Final answer
    x = 368,506.76

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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.