Home / 885,710.40-1,328,565.60-531,124.80

Finding the Fourth Proportional to 885,710.40, 1,328,565.60 and 531,124.80

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Solution

The fourth proportional to 885,710.40, 1,328,565.60 and 531,124.80 is: 796,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,710.40 : 1,328,565.60 = 531,124.80 : x
  2. Step 2: Convert to fraction form
    885,710.40/1,328,565.60 = 531,124.80/x
  3. Step 3: Cross multiply
    885,710.40x = 1,328,565.60 × 531,124.80
  4. Step 4: Simplify right side
    885,710.40x = 705,634,138,586.88
  5. Step 5: Solve for x
    x = 705,634,138,586.88/885,710.40
  6. Step 6: Final answer
    x = 796,687.20

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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.