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Finding the Fourth Proportional to 402,392.48, 555,093.40 and 273,337.60

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Solution

The fourth proportional to 402,392.48, 555,093.40 and 273,337.60 is: 377,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,392.48 : 555,093.40 = 273,337.60 : x
  2. Step 2: Convert to fraction form
    402,392.48/555,093.40 = 273,337.60/x
  3. Step 3: Cross multiply
    402,392.48x = 555,093.40 × 273,337.60
  4. Step 4: Simplify right side
    402,392.48x = 151,727,897,731.84
  5. Step 5: Solve for x
    x = 151,727,897,731.84/402,392.48
  6. Step 6: Final answer
    x = 377,064.45

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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.