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Finding the Fourth Proportional to 526,521.90, 789,552.45 and 210,873.90

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Solution

The fourth proportional to 526,521.90, 789,552.45 and 210,873.90 is: 316,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,521.90 : 789,552.45 = 210,873.90 : x
  2. Step 2: Convert to fraction form
    526,521.90/789,552.45 = 210,873.90/x
  3. Step 3: Cross multiply
    526,521.90x = 789,552.45 × 210,873.90
  4. Step 4: Simplify right side
    526,521.90x = 166,496,004,386.06
  5. Step 5: Solve for x
    x = 166,496,004,386.06/526,521.90
  6. Step 6: Final answer
    x = 316,218.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.