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Finding the Fourth Proportional to 612,488.04, 918,732.14 and 191,796.76

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Solution

The fourth proportional to 612,488.04, 918,732.14 and 191,796.76 is: 287,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,488.04 : 918,732.14 = 191,796.76 : x
  2. Step 2: Convert to fraction form
    612,488.04/918,732.14 = 191,796.76/x
  3. Step 3: Cross multiply
    612,488.04x = 918,732.14 × 191,796.76
  4. Step 4: Simplify right side
    612,488.04x = 176,209,847,759.87
  5. Step 5: Solve for x
    x = 176,209,847,759.87/612,488.04
  6. Step 6: Final answer
    x = 287,695.17

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1.5x scale

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.