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Finding the Fourth Proportional to 277,014.80, 415,400.70 and 127,205.30

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Solution

The fourth proportional to 277,014.80, 415,400.70 and 127,205.30 is: 190,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,014.80 : 415,400.70 = 127,205.30 : x
  2. Step 2: Convert to fraction form
    277,014.80/415,400.70 = 127,205.30/x
  3. Step 3: Cross multiply
    277,014.80x = 415,400.70 × 127,205.30
  4. Step 4: Simplify right side
    277,014.80x = 52,841,170,663.71
  5. Step 5: Solve for x
    x = 52,841,170,663.71/277,014.80
  6. Step 6: Final answer
    x = 190,752.16

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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.