Home / 495,235.85-681,895.23-386,778.29

Finding the Fourth Proportional to 495,235.85, 681,895.23 and 386,778.29

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Solution

The fourth proportional to 495,235.85, 681,895.23 and 386,778.29 is: 532,558.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,235.85 : 681,895.23 = 386,778.29 : x
  2. Step 2: Convert to fraction form
    495,235.85/681,895.23 = 386,778.29/x
  3. Step 3: Cross multiply
    495,235.85x = 681,895.23 × 386,778.29
  4. Step 4: Simplify right side
    495,235.85x = 263,742,271,018.56
  5. Step 5: Solve for x
    x = 263,742,271,018.56/495,235.85
  6. Step 6: Final answer
    x = 532,558.92

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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.