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Finding the Fourth Proportional to 505,792.57, 697,985.59 and 276,344.93

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Solution

The fourth proportional to 505,792.57, 697,985.59 and 276,344.93 is: 381,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,792.57 : 697,985.59 = 276,344.93 : x
  2. Step 2: Convert to fraction form
    505,792.57/697,985.59 = 276,344.93/x
  3. Step 3: Cross multiply
    505,792.57x = 697,985.59 × 276,344.93
  4. Step 4: Simplify right side
    505,792.57x = 192,884,779,009.56
  5. Step 5: Solve for x
    x = 192,884,779,009.56/505,792.57
  6. Step 6: Final answer
    x = 381,351.55

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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.