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Finding the Fourth Proportional to 504,357.84, 695,985.48 and 313,369.56

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Solution

The fourth proportional to 504,357.84, 695,985.48 and 313,369.56 is: 432,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,357.84 : 695,985.48 = 313,369.56 : x
  2. Step 2: Convert to fraction form
    504,357.84/695,985.48 = 313,369.56/x
  3. Step 3: Cross multiply
    504,357.84x = 695,985.48 × 313,369.56
  4. Step 4: Simplify right side
    504,357.84x = 218,100,663,633.99
  5. Step 5: Solve for x
    x = 218,100,663,633.99/504,357.84
  6. Step 6: Final answer
    x = 432,432.38

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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.