Home / 691,215.10-1,036,667.05-247,983.10

Finding the Fourth Proportional to 691,215.10, 1,036,667.05 and 247,983.10

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Solution

The fourth proportional to 691,215.10, 1,036,667.05 and 247,983.10 is: 371,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,215.10 : 1,036,667.05 = 247,983.10 : x
  2. Step 2: Convert to fraction form
    691,215.10/1,036,667.05 = 247,983.10/x
  3. Step 3: Cross multiply
    691,215.10x = 1,036,667.05 × 247,983.10
  4. Step 4: Simplify right side
    691,215.10x = 257,075,908,726.86
  5. Step 5: Solve for x
    x = 257,075,908,726.86/691,215.10
  6. Step 6: Final answer
    x = 371,918.83

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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.