Home / 526,820.79-727,012.76-285,103.43

Finding the Fourth Proportional to 526,820.79, 727,012.76 and 285,103.43

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Solution

The fourth proportional to 526,820.79, 727,012.76 and 285,103.43 is: 393,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,820.79 : 727,012.76 = 285,103.43 : x
  2. Step 2: Convert to fraction form
    526,820.79/727,012.76 = 285,103.43/x
  3. Step 3: Cross multiply
    526,820.79x = 727,012.76 × 285,103.43
  4. Step 4: Simplify right side
    526,820.79x = 207,273,831,529.77
  5. Step 5: Solve for x
    x = 207,273,831,529.77/526,820.79
  6. Step 6: Final answer
    x = 393,442.77

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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.