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Finding the Fourth Proportional to 371,039.70, 555,903.45 and 314,615.10

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Solution

The fourth proportional to 371,039.70, 555,903.45 and 314,615.10 is: 471,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,039.70 : 555,903.45 = 314,615.10 : x
  2. Step 2: Convert to fraction form
    371,039.70/555,903.45 = 314,615.10/x
  3. Step 3: Cross multiply
    371,039.70x = 555,903.45 × 314,615.10
  4. Step 4: Simplify right side
    371,039.70x = 174,895,619,512.10
  5. Step 5: Solve for x
    x = 174,895,619,512.10/371,039.70
  6. Step 6: Final answer
    x = 471,366.32

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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.