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Finding the Fourth Proportional to 612,506.16, 918,759.06 and 191,814.84

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Solution

The fourth proportional to 612,506.16, 918,759.06 and 191,814.84 is: 287,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,506.16 : 918,759.06 = 191,814.84 : x
  2. Step 2: Convert to fraction form
    612,506.16/918,759.06 = 191,814.84/x
  3. Step 3: Cross multiply
    612,506.16x = 918,759.06 × 191,814.84
  4. Step 4: Simplify right side
    612,506.16x = 176,231,622,092.45
  5. Step 5: Solve for x
    x = 176,231,622,092.45/612,506.16
  6. Step 6: Final answer
    x = 287,722.20

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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.