Home / 666,763.49-1,000,043.80-217,483.76

Finding the Fourth Proportional to 666,763.49, 1,000,043.80 and 217,483.76

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Solution

The fourth proportional to 666,763.49, 1,000,043.80 and 217,483.76 is: 326,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,763.49 : 1,000,043.80 = 217,483.76 : x
  2. Step 2: Convert to fraction form
    666,763.49/1,000,043.80 = 217,483.76/x
  3. Step 3: Cross multiply
    666,763.49x = 1,000,043.80 × 217,483.76
  4. Step 4: Simplify right side
    666,763.49x = 217,493,285,788.69
  5. Step 5: Solve for x
    x = 217,493,285,788.69/666,763.49
  6. Step 6: Final answer
    x = 326,192.55

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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.