Home / 811,595.56-1,216,601.82-338,416.12

Finding the Fourth Proportional to 811,595.56, 1,216,601.82 and 338,416.12

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Solution

The fourth proportional to 811,595.56, 1,216,601.82 and 338,416.12 is: 507,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,595.56 : 1,216,601.82 = 338,416.12 : x
  2. Step 2: Convert to fraction form
    811,595.56/1,216,601.82 = 338,416.12/x
  3. Step 3: Cross multiply
    811,595.56x = 1,216,601.82 × 338,416.12
  4. Step 4: Simplify right side
    811,595.56x = 411,717,667,509.34
  5. Step 5: Solve for x
    x = 411,717,667,509.34/811,595.56
  6. Step 6: Final answer
    x = 507,294.13

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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.