Home / 688,087.41-949,560.62-386,281.41

Finding the Fourth Proportional to 688,087.41, 949,560.62 and 386,281.41

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Solution

The fourth proportional to 688,087.41, 949,560.62 and 386,281.41 is: 533,068.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,087.41 : 949,560.62 = 386,281.41 : x
  2. Step 2: Convert to fraction form
    688,087.41/949,560.62 = 386,281.41/x
  3. Step 3: Cross multiply
    688,087.41x = 949,560.62 × 386,281.41
  4. Step 4: Simplify right side
    688,087.41x = 366,797,611,854.65
  5. Step 5: Solve for x
    x = 366,797,611,854.65/688,087.41
  6. Step 6: Final answer
    x = 533,068.34

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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.