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Finding the Fourth Proportional to 369,611.70, 554,417.55 and 159,486.90

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Solution

The fourth proportional to 369,611.70, 554,417.55 and 159,486.90 is: 239,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,611.70 : 554,417.55 = 159,486.90 : x
  2. Step 2: Convert to fraction form
    369,611.70/554,417.55 = 159,486.90/x
  3. Step 3: Cross multiply
    369,611.70x = 554,417.55 × 159,486.90
  4. Step 4: Simplify right side
    369,611.70x = 88,422,336,355.10
  5. Step 5: Solve for x
    x = 88,422,336,355.10/369,611.70
  6. Step 6: Final answer
    x = 239,230.35

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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.