Home / 810,001.92-1,117,798.20-447,450.72

Finding the Fourth Proportional to 810,001.92, 1,117,798.20 and 447,450.72

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Solution

The fourth proportional to 810,001.92, 1,117,798.20 and 447,450.72 is: 617,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,001.92 : 1,117,798.20 = 447,450.72 : x
  2. Step 2: Convert to fraction form
    810,001.92/1,117,798.20 = 447,450.72/x
  3. Step 3: Cross multiply
    810,001.92x = 1,117,798.20 × 447,450.72
  4. Step 4: Simplify right side
    810,001.92x = 500,159,609,404.70
  5. Step 5: Solve for x
    x = 500,159,609,404.70/810,001.92
  6. Step 6: Final answer
    x = 617,479.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.