Home / 666,879.56-1,000,417.74-193,503.40

Finding the Fourth Proportional to 666,879.56, 1,000,417.74 and 193,503.40

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Solution

The fourth proportional to 666,879.56, 1,000,417.74 and 193,503.40 is: 290,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,879.56 : 1,000,417.74 = 193,503.40 : x
  2. Step 2: Convert to fraction form
    666,879.56/1,000,417.74 = 193,503.40/x
  3. Step 3: Cross multiply
    666,879.56x = 1,000,417.74 × 193,503.40
  4. Step 4: Simplify right side
    666,879.56x = 193,584,234,110.32
  5. Step 5: Solve for x
    x = 193,584,234,110.32/666,879.56
  6. Step 6: Final answer
    x = 290,283.65

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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.