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Finding the Fourth Proportional to 578,218.15, 797,950.53 and 316,569.10

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Solution

The fourth proportional to 578,218.15, 797,950.53 and 316,569.10 is: 436,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,218.15 : 797,950.53 = 316,569.10 : x
  2. Step 2: Convert to fraction form
    578,218.15/797,950.53 = 316,569.10/x
  3. Step 3: Cross multiply
    578,218.15x = 797,950.53 × 316,569.10
  4. Step 4: Simplify right side
    578,218.15x = 252,606,481,126.62
  5. Step 5: Solve for x
    x = 252,606,481,126.62/578,218.15
  6. Step 6: Final answer
    x = 436,870.55

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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.