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Finding the Fourth Proportional to 503,905.16, 695,391 and 277,550.12

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Solution

The fourth proportional to 503,905.16, 695,391 and 277,550.12 is: 383,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,905.16 : 695,391 = 277,550.12 : x
  2. Step 2: Convert to fraction form
    503,905.16/695,391 = 277,550.12/x
  3. Step 3: Cross multiply
    503,905.16x = 695,391 × 277,550.12
  4. Step 4: Simplify right side
    503,905.16x = 193,005,855,496.92
  5. Step 5: Solve for x
    x = 193,005,855,496.92/503,905.16
  6. Step 6: Final answer
    x = 383,020.20

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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.