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Finding the Fourth Proportional to 617,703.17, 926,440.61 and 191,159.46

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Solution

The fourth proportional to 617,703.17, 926,440.61 and 191,159.46 is: 286,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,703.17 : 926,440.61 = 191,159.46 : x
  2. Step 2: Convert to fraction form
    617,703.17/926,440.61 = 191,159.46/x
  3. Step 3: Cross multiply
    617,703.17x = 926,440.61 × 191,159.46
  4. Step 4: Simplify right side
    617,703.17x = 177,097,885,773.87
  5. Step 5: Solve for x
    x = 177,097,885,773.87/617,703.17
  6. Step 6: Final answer
    x = 286,703.87

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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.