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Finding the Fourth Proportional to 504,653.18, 696,401.84 and 286,890.39

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Solution

The fourth proportional to 504,653.18, 696,401.84 and 286,890.39 is: 395,897.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,653.18 : 696,401.84 = 286,890.39 : x
  2. Step 2: Convert to fraction form
    504,653.18/696,401.84 = 286,890.39/x
  3. Step 3: Cross multiply
    504,653.18x = 696,401.84 × 286,890.39
  4. Step 4: Simplify right side
    504,653.18x = 199,790,994,039.87
  5. Step 5: Solve for x
    x = 199,790,994,039.87/504,653.18
  6. Step 6: Final answer
    x = 395,897.63

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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.