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Finding the Fourth Proportional to 505,425.15, 697,503.02 and 275,994.43

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Solution

The fourth proportional to 505,425.15, 697,503.02 and 275,994.43 is: 380,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,425.15 : 697,503.02 = 275,994.43 : x
  2. Step 2: Convert to fraction form
    505,425.15/697,503.02 = 275,994.43/x
  3. Step 3: Cross multiply
    505,425.15x = 697,503.02 × 275,994.43
  4. Step 4: Simplify right side
    505,425.15x = 192,506,946,652.29
  5. Step 5: Solve for x
    x = 192,506,946,652.29/505,425.15
  6. Step 6: Final answer
    x = 380,881.21

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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.