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Finding the Fourth Proportional to 506,811.05, 699,399.52 and 277,368.20

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Solution

The fourth proportional to 506,811.05, 699,399.52 and 277,368.20 is: 382,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,811.05 : 699,399.52 = 277,368.20 : x
  2. Step 2: Convert to fraction form
    506,811.05/699,399.52 = 277,368.20/x
  3. Step 3: Cross multiply
    506,811.05x = 699,399.52 × 277,368.20
  4. Step 4: Simplify right side
    506,811.05x = 193,991,185,943.26
  5. Step 5: Solve for x
    x = 193,991,185,943.26/506,811.05
  6. Step 6: Final answer
    x = 382,768.27

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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.