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Finding the Fourth Proportional to 668,226.51, 921,260.49 and 530,861.24

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Solution

The fourth proportional to 668,226.51, 921,260.49 and 530,861.24 is: 731,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,226.51 : 921,260.49 = 530,861.24 : x
  2. Step 2: Convert to fraction form
    668,226.51/921,260.49 = 530,861.24/x
  3. Step 3: Cross multiply
    668,226.51x = 921,260.49 × 530,861.24
  4. Step 4: Simplify right side
    668,226.51x = 489,061,486,396.83
  5. Step 5: Solve for x
    x = 489,061,486,396.83/668,226.51
  6. Step 6: Final answer
    x = 731,879.80

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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.