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Finding the Fourth Proportional to 504,582.84, 696,309.42 and 278,228.28

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Solution

The fourth proportional to 504,582.84, 696,309.42 and 278,228.28 is: 383,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,582.84 : 696,309.42 = 278,228.28 : x
  2. Step 2: Convert to fraction form
    504,582.84/696,309.42 = 278,228.28/x
  3. Step 3: Cross multiply
    504,582.84x = 696,309.42 × 278,228.28
  4. Step 4: Simplify right side
    504,582.84x = 193,732,972,274.40
  5. Step 5: Solve for x
    x = 193,732,972,274.40/504,582.84
  6. Step 6: Final answer
    x = 383,946.81

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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.