Home / 823,720.58-1,136,870.42-565,385.30

Finding the Fourth Proportional to 823,720.58, 1,136,870.42 and 565,385.30

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Solution

The fourth proportional to 823,720.58, 1,136,870.42 and 565,385.30 is: 780,325.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,720.58 : 1,136,870.42 = 565,385.30 : x
  2. Step 2: Convert to fraction form
    823,720.58/1,136,870.42 = 565,385.30/x
  3. Step 3: Cross multiply
    823,720.58x = 1,136,870.42 × 565,385.30
  4. Step 4: Simplify right side
    823,720.58x = 642,769,823,472.83
  5. Step 5: Solve for x
    x = 642,769,823,472.83/823,720.58
  6. Step 6: Final answer
    x = 780,325.08

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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.