Home / 467,756.07-645,072.98-306,552.57

Finding the Fourth Proportional to 467,756.07, 645,072.98 and 306,552.57

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Solution

The fourth proportional to 467,756.07, 645,072.98 and 306,552.57 is: 422,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,756.07 : 645,072.98 = 306,552.57 : x
  2. Step 2: Convert to fraction form
    467,756.07/645,072.98 = 306,552.57/x
  3. Step 3: Cross multiply
    467,756.07x = 645,072.98 × 306,552.57
  4. Step 4: Simplify right side
    467,756.07x = 197,748,778,323.80
  5. Step 5: Solve for x
    x = 197,748,778,323.80/467,756.07
  6. Step 6: Final answer
    x = 422,760.47

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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.