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Finding the Fourth Proportional to 608,885.74, 840,263.95 and 336,972.38

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Solution

The fourth proportional to 608,885.74, 840,263.95 and 336,972.38 is: 465,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,885.74 : 840,263.95 = 336,972.38 : x
  2. Step 2: Convert to fraction form
    608,885.74/840,263.95 = 336,972.38/x
  3. Step 3: Cross multiply
    608,885.74x = 840,263.95 × 336,972.38
  4. Step 4: Simplify right side
    608,885.74x = 283,145,746,002.79
  5. Step 5: Solve for x
    x = 283,145,746,002.79/608,885.74
  6. Step 6: Final answer
    x = 465,022.79

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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.