Home / 819,706.29-1,131,192.45-457,130.54

Finding the Fourth Proportional to 819,706.29, 1,131,192.45 and 457,130.54

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Solution

The fourth proportional to 819,706.29, 1,131,192.45 and 457,130.54 is: 630,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,706.29 : 1,131,192.45 = 457,130.54 : x
  2. Step 2: Convert to fraction form
    819,706.29/1,131,192.45 = 457,130.54/x
  3. Step 3: Cross multiply
    819,706.29x = 1,131,192.45 × 457,130.54
  4. Step 4: Simplify right side
    819,706.29x = 517,102,609,856.46
  5. Step 5: Solve for x
    x = 517,102,609,856.46/819,706.29
  6. Step 6: Final answer
    x = 630,838.89

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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.