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Finding the Fourth Proportional to 624,590.10, 936,744.93 and 287,306.82

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Solution

The fourth proportional to 624,590.10, 936,744.93 and 287,306.82 is: 430,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,590.10 : 936,744.93 = 287,306.82 : x
  2. Step 2: Convert to fraction form
    624,590.10/936,744.93 = 287,306.82/x
  3. Step 3: Cross multiply
    624,590.10x = 936,744.93 × 287,306.82
  4. Step 4: Simplify right side
    624,590.10x = 269,133,206,989.42
  5. Step 5: Solve for x
    x = 269,133,206,989.42/624,590.10
  6. Step 6: Final answer
    x = 430,895.73

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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.