Home / 527,541.05-727,924.42-312,646.43

Finding the Fourth Proportional to 527,541.05, 727,924.42 and 312,646.43

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Solution

The fourth proportional to 527,541.05, 727,924.42 and 312,646.43 is: 431,403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,541.05 : 727,924.42 = 312,646.43 : x
  2. Step 2: Convert to fraction form
    527,541.05/727,924.42 = 312,646.43/x
  3. Step 3: Cross multiply
    527,541.05x = 727,924.42 × 312,646.43
  4. Step 4: Simplify right side
    527,541.05x = 227,582,973,433.44
  5. Step 5: Solve for x
    x = 227,582,973,433.44/527,541.05
  6. Step 6: Final answer
    x = 431,403.34

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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.