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Finding the Fourth Proportional to 527,297.83, 727,667.38 and 285,574.87

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Solution

The fourth proportional to 527,297.83, 727,667.38 and 285,574.87 is: 394,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,297.83 : 727,667.38 = 285,574.87 : x
  2. Step 2: Convert to fraction form
    527,297.83/727,667.38 = 285,574.87/x
  3. Step 3: Cross multiply
    527,297.83x = 727,667.38 × 285,574.87
  4. Step 4: Simplify right side
    527,297.83x = 207,803,514,913.64
  5. Step 5: Solve for x
    x = 207,803,514,913.64/527,297.83
  6. Step 6: Final answer
    x = 394,091.35

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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.