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Finding the Fourth Proportional to 526,818.99, 727,011.50 and 285,103.32

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Solution

The fourth proportional to 526,818.99, 727,011.50 and 285,103.32 is: 393,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,818.99 : 727,011.50 = 285,103.32 : x
  2. Step 2: Convert to fraction form
    526,818.99/727,011.50 = 285,103.32/x
  3. Step 3: Cross multiply
    526,818.99x = 727,011.50 × 285,103.32
  4. Step 4: Simplify right side
    526,818.99x = 207,273,390,902.66
  5. Step 5: Solve for x
    x = 207,273,390,902.66/526,818.99
  6. Step 6: Final answer
    x = 393,443.28

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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.