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Finding the Fourth Proportional to 608,411.10, 910,867.05 and 372,215.10

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Solution

The fourth proportional to 608,411.10, 910,867.05 and 372,215.10 is: 557,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,411.10 : 910,867.05 = 372,215.10 : x
  2. Step 2: Convert to fraction form
    608,411.10/910,867.05 = 372,215.10/x
  3. Step 3: Cross multiply
    608,411.10x = 910,867.05 × 372,215.10
  4. Step 4: Simplify right side
    608,411.10x = 339,038,470,102.46
  5. Step 5: Solve for x
    x = 339,038,470,102.46/608,411.10
  6. Step 6: Final answer
    x = 557,252.28

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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.