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Finding the Fourth Proportional to 369,455.64, 553,182.46 and 191,589.66

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Solution

The fourth proportional to 369,455.64, 553,182.46 and 191,589.66 is: 286,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,455.64 : 553,182.46 = 191,589.66 : x
  2. Step 2: Convert to fraction form
    369,455.64/553,182.46 = 191,589.66/x
  3. Step 3: Cross multiply
    369,455.64x = 553,182.46 × 191,589.66
  4. Step 4: Simplify right side
    369,455.64x = 105,984,039,429.36
  5. Step 5: Solve for x
    x = 105,984,039,429.36/369,455.64
  6. Step 6: Final answer
    x = 286,865.40

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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.