Home / 921,997.02-1,382,206.70-353,785.88

Finding the Fourth Proportional to 921,997.02, 1,382,206.70 and 353,785.88

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Solution

The fourth proportional to 921,997.02, 1,382,206.70 and 353,785.88 is: 530,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,997.02 : 1,382,206.70 = 353,785.88 : x
  2. Step 2: Convert to fraction form
    921,997.02/1,382,206.70 = 353,785.88/x
  3. Step 3: Cross multiply
    921,997.02x = 1,382,206.70 × 353,785.88
  4. Step 4: Simplify right side
    921,997.02x = 489,005,215,387.98
  5. Step 5: Solve for x
    x = 489,005,215,387.98/921,997.02
  6. Step 6: Final answer
    x = 530,376.13

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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.