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Finding the Fourth Proportional to 610,803.66, 916,263.81 and 189,966.54

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Solution

The fourth proportional to 610,803.66, 916,263.81 and 189,966.54 is: 284,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,803.66 : 916,263.81 = 189,966.54 : x
  2. Step 2: Convert to fraction form
    610,803.66/916,263.81 = 189,966.54/x
  3. Step 3: Cross multiply
    610,803.66x = 916,263.81 × 189,966.54
  4. Step 4: Simplify right side
    610,803.66x = 174,059,465,712.92
  5. Step 5: Solve for x
    x = 174,059,465,712.92/610,803.66
  6. Step 6: Final answer
    x = 284,967.95

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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.