Home / 689,184.57-1,033,101.93-385,726.92

Finding the Fourth Proportional to 689,184.57, 1,033,101.93 and 385,726.92

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Solution

The fourth proportional to 689,184.57, 1,033,101.93 and 385,726.92 is: 578,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,184.57 : 1,033,101.93 = 385,726.92 : x
  2. Step 2: Convert to fraction form
    689,184.57/1,033,101.93 = 385,726.92/x
  3. Step 3: Cross multiply
    689,184.57x = 1,033,101.93 × 385,726.92
  4. Step 4: Simplify right side
    689,184.57x = 398,495,225,504.96
  5. Step 5: Solve for x
    x = 398,495,225,504.96/689,184.57
  6. Step 6: Final answer
    x = 578,212.63

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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.