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Finding the Fourth Proportional to 613,562.39, 846,705.98 and 358,956.71

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Solution

The fourth proportional to 613,562.39, 846,705.98 and 358,956.71 is: 495,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,562.39 : 846,705.98 = 358,956.71 : x
  2. Step 2: Convert to fraction form
    613,562.39/846,705.98 = 358,956.71/x
  3. Step 3: Cross multiply
    613,562.39x = 846,705.98 × 358,956.71
  4. Step 4: Simplify right side
    613,562.39x = 303,930,789,581.99
  5. Step 5: Solve for x
    x = 303,930,789,581.99/613,562.39
  6. Step 6: Final answer
    x = 495,354.34

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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.