Home / 688,984.79-1,033,410.36-209,216.74

Finding the Fourth Proportional to 688,984.79, 1,033,410.36 and 209,216.74

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Solution

The fourth proportional to 688,984.79, 1,033,410.36 and 209,216.74 is: 313,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,984.79 : 1,033,410.36 = 209,216.74 : x
  2. Step 2: Convert to fraction form
    688,984.79/1,033,410.36 = 209,216.74/x
  3. Step 3: Cross multiply
    688,984.79x = 1,033,410.36 × 209,216.74
  4. Step 4: Simplify right side
    688,984.79x = 216,206,746,601.43
  5. Step 5: Solve for x
    x = 216,206,746,601.43/688,984.79
  6. Step 6: Final answer
    x = 313,804.82

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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.