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Finding the Fourth Proportional to 277,501.80, 416,252.70 and 257,818.80

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Solution

The fourth proportional to 277,501.80, 416,252.70 and 257,818.80 is: 386,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,501.80 : 416,252.70 = 257,818.80 : x
  2. Step 2: Convert to fraction form
    277,501.80/416,252.70 = 257,818.80/x
  3. Step 3: Cross multiply
    277,501.80x = 416,252.70 × 257,818.80
  4. Step 4: Simplify right side
    277,501.80x = 107,317,771,610.76
  5. Step 5: Solve for x
    x = 107,317,771,610.76/277,501.80
  6. Step 6: Final answer
    x = 386,728.20

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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.