Home / 581,111.10-871,666.65-206,999.10

Finding the Fourth Proportional to 581,111.10, 871,666.65 and 206,999.10

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Solution

The fourth proportional to 581,111.10, 871,666.65 and 206,999.10 is: 310,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,111.10 : 871,666.65 = 206,999.10 : x
  2. Step 2: Convert to fraction form
    581,111.10/871,666.65 = 206,999.10/x
  3. Step 3: Cross multiply
    581,111.10x = 871,666.65 × 206,999.10
  4. Step 4: Simplify right side
    581,111.10x = 180,434,212,050.02
  5. Step 5: Solve for x
    x = 180,434,212,050.02/581,111.10
  6. Step 6: Final answer
    x = 310,498.65

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Double scale
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Similar ratio
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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.