Home / 806,667.20-1,210,000.80-540,555.20

Finding the Fourth Proportional to 806,667.20, 1,210,000.80 and 540,555.20

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Solution

The fourth proportional to 806,667.20, 1,210,000.80 and 540,555.20 is: 810,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,667.20 : 1,210,000.80 = 540,555.20 : x
  2. Step 2: Convert to fraction form
    806,667.20/1,210,000.80 = 540,555.20/x
  3. Step 3: Cross multiply
    806,667.20x = 1,210,000.80 × 540,555.20
  4. Step 4: Simplify right side
    806,667.20x = 654,072,224,444.16
  5. Step 5: Solve for x
    x = 654,072,224,444.16/806,667.20
  6. Step 6: Final answer
    x = 810,832.80

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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.