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Finding the Fourth Proportional to 505,652.41, 697,802.70 and 276,212.87

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Solution

The fourth proportional to 505,652.41, 697,802.70 and 276,212.87 is: 381,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,652.41 : 697,802.70 = 276,212.87 : x
  2. Step 2: Convert to fraction form
    505,652.41/697,802.70 = 276,212.87/x
  3. Step 3: Cross multiply
    505,652.41x = 697,802.70 × 276,212.87
  4. Step 4: Simplify right side
    505,652.41x = 192,742,085,070.60
  5. Step 5: Solve for x
    x = 192,742,085,070.60/505,652.41
  6. Step 6: Final answer
    x = 381,175.06

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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.