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Finding the Fourth Proportional to 343,640.40, 515,460.60 and 94,322.40

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Solution

The fourth proportional to 343,640.40, 515,460.60 and 94,322.40 is: 141,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,640.40 : 515,460.60 = 94,322.40 : x
  2. Step 2: Convert to fraction form
    343,640.40/515,460.60 = 94,322.40/x
  3. Step 3: Cross multiply
    343,640.40x = 515,460.60 × 94,322.40
  4. Step 4: Simplify right side
    343,640.40x = 48,619,480,897.44
  5. Step 5: Solve for x
    x = 48,619,480,897.44/343,640.40
  6. Step 6: Final answer
    x = 141,483.60

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1.5x scale

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.