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Finding the Fourth Proportional to 526,740.22, 726,900.64 and 297,345.79

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Solution

The fourth proportional to 526,740.22, 726,900.64 and 297,345.79 is: 410,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,740.22 : 726,900.64 = 297,345.79 : x
  2. Step 2: Convert to fraction form
    526,740.22/726,900.64 = 297,345.79/x
  3. Step 3: Cross multiply
    526,740.22x = 726,900.64 × 297,345.79
  4. Step 4: Simplify right side
    526,740.22x = 216,140,845,052.31
  5. Step 5: Solve for x
    x = 216,140,845,052.31/526,740.22
  6. Step 6: Final answer
    x = 410,336.70

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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.