Home / 691,985.70-1,037,784.15-218,816.10

Finding the Fourth Proportional to 691,985.70, 1,037,784.15 and 218,816.10

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Solution

The fourth proportional to 691,985.70, 1,037,784.15 and 218,816.10 is: 328,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,985.70 : 1,037,784.15 = 218,816.10 : x
  2. Step 2: Convert to fraction form
    691,985.70/1,037,784.15 = 218,816.10/x
  3. Step 3: Cross multiply
    691,985.70x = 1,037,784.15 × 218,816.10
  4. Step 4: Simplify right side
    691,985.70x = 227,083,880,344.82
  5. Step 5: Solve for x
    x = 227,083,880,344.82/691,985.70
  6. Step 6: Final answer
    x = 328,162.68

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Double scale
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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.