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Finding the Fourth Proportional to 2,955.98, 4,434.45 and 903.50

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Solution

The fourth proportional to 2,955.98, 4,434.45 and 903.50 is: 1,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.98 : 4,434.45 = 903.50 : x
  2. Step 2: Convert to fraction form
    2,955.98/4,434.45 = 903.50/x
  3. Step 3: Cross multiply
    2,955.98x = 4,434.45 × 903.50
  4. Step 4: Simplify right side
    2,955.98x = 4,006,525.58
  5. Step 5: Solve for x
    x = 4,006,525.58/2,955.98
  6. Step 6: Final answer
    x = 1,355.40

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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.