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Finding the Fourth Proportional to 283,870.50, 391,746.96 and 183,443.46

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Solution

The fourth proportional to 283,870.50, 391,746.96 and 183,443.46 is: 253,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,870.50 : 391,746.96 = 183,443.46 : x
  2. Step 2: Convert to fraction form
    283,870.50/391,746.96 = 183,443.46/x
  3. Step 3: Cross multiply
    283,870.50x = 391,746.96 × 183,443.46
  4. Step 4: Simplify right side
    283,870.50x = 71,863,417,786.88
  5. Step 5: Solve for x
    x = 71,863,417,786.88/283,870.50
  6. Step 6: Final answer
    x = 253,155.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.