Home / 613,370.10-918,305.55-543,386.10

Finding the Fourth Proportional to 613,370.10, 918,305.55 and 543,386.10

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Solution

The fourth proportional to 613,370.10, 918,305.55 and 543,386.10 is: 813,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,370.10 : 918,305.55 = 543,386.10 : x
  2. Step 2: Convert to fraction form
    613,370.10/918,305.55 = 543,386.10/x
  3. Step 3: Cross multiply
    613,370.10x = 918,305.55 × 543,386.10
  4. Step 4: Simplify right side
    613,370.10x = 498,994,471,422.86
  5. Step 5: Solve for x
    x = 498,994,471,422.86/613,370.10
  6. Step 6: Final answer
    x = 813,529.18

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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.