Home / 688,985.49-1,033,411.41-209,217.44

Finding the Fourth Proportional to 688,985.49, 1,033,411.41 and 209,217.44

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Solution

The fourth proportional to 688,985.49, 1,033,411.41 and 209,217.44 is: 313,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,985.49 : 1,033,411.41 = 209,217.44 : x
  2. Step 2: Convert to fraction form
    688,985.49/1,033,411.41 = 209,217.44/x
  3. Step 3: Cross multiply
    688,985.49x = 1,033,411.41 × 209,217.44
  4. Step 4: Simplify right side
    688,985.49x = 216,207,689,666.99
  5. Step 5: Solve for x
    x = 216,207,689,666.99/688,985.49
  6. Step 6: Final answer
    x = 313,805.87

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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.