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Finding the Fourth Proportional to 439,503.74, 662,549.72 and 410,208.60

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Solution

The fourth proportional to 439,503.74, 662,549.72 and 410,208.60 is: 618,387.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,503.74 : 662,549.72 = 410,208.60 : x
  2. Step 2: Convert to fraction form
    439,503.74/662,549.72 = 410,208.60/x
  3. Step 3: Cross multiply
    439,503.74x = 662,549.72 × 410,208.60
  4. Step 4: Simplify right side
    439,503.74x = 271,783,593,071.59
  5. Step 5: Solve for x
    x = 271,783,593,071.59/439,503.74
  6. Step 6: Final answer
    x = 618,387.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.