Home / 285,431.55-393,705.66-183,585.84

Finding the Fourth Proportional to 285,431.55, 393,705.66 and 183,585.84

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Solution

The fourth proportional to 285,431.55, 393,705.66 and 183,585.84 is: 253,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,431.55 : 393,705.66 = 183,585.84 : x
  2. Step 2: Convert to fraction form
    285,431.55/393,705.66 = 183,585.84/x
  3. Step 3: Cross multiply
    285,431.55x = 393,705.66 × 183,585.84
  4. Step 4: Simplify right side
    285,431.55x = 72,278,785,730.50
  5. Step 5: Solve for x
    x = 72,278,785,730.50/285,431.55
  6. Step 6: Final answer
    x = 253,226.34

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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.