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Finding the Fourth Proportional to 608,626.64, 913,331.64 and 328,337.36

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Solution

The fourth proportional to 608,626.64, 913,331.64 and 328,337.36 is: 492,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,626.64 : 913,331.64 = 328,337.36 : x
  2. Step 2: Convert to fraction form
    608,626.64/913,331.64 = 328,337.36/x
  3. Step 3: Cross multiply
    608,626.64x = 913,331.64 × 328,337.36
  4. Step 4: Simplify right side
    608,626.64x = 299,880,899,482.07
  5. Step 5: Solve for x
    x = 299,880,899,482.07/608,626.64
  6. Step 6: Final answer
    x = 492,717.34

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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.