Home / 688,728.90-1,033,093.35-644,114.10

Finding the Fourth Proportional to 688,728.90, 1,033,093.35 and 644,114.10

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Solution

The fourth proportional to 688,728.90, 1,033,093.35 and 644,114.10 is: 966,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,728.90 : 1,033,093.35 = 644,114.10 : x
  2. Step 2: Convert to fraction form
    688,728.90/1,033,093.35 = 644,114.10/x
  3. Step 3: Cross multiply
    688,728.90x = 1,033,093.35 × 644,114.10
  4. Step 4: Simplify right side
    688,728.90x = 665,429,993,351.24
  5. Step 5: Solve for x
    x = 665,429,993,351.24/688,728.90
  6. Step 6: Final answer
    x = 966,171.15

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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.