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Finding the Fourth Proportional to 713,156.03, 984,009.88 and 422,639.54

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Solution

The fourth proportional to 713,156.03, 984,009.88 and 422,639.54 is: 583,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,156.03 : 984,009.88 = 422,639.54 : x
  2. Step 2: Convert to fraction form
    713,156.03/984,009.88 = 422,639.54/x
  3. Step 3: Cross multiply
    713,156.03x = 984,009.88 × 422,639.54
  4. Step 4: Simplify right side
    713,156.03x = 415,881,484,442.08
  5. Step 5: Solve for x
    x = 415,881,484,442.08/713,156.03
  6. Step 6: Final answer
    x = 583,156.37

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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.