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Finding the Fourth Proportional to 578,065.32, 797,706.18 and 316,418.76

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Solution

The fourth proportional to 578,065.32, 797,706.18 and 316,418.76 is: 436,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,065.32 : 797,706.18 = 316,418.76 : x
  2. Step 2: Convert to fraction form
    578,065.32/797,706.18 = 316,418.76/x
  3. Step 3: Cross multiply
    578,065.32x = 797,706.18 × 316,418.76
  4. Step 4: Simplify right side
    578,065.32x = 252,409,200,319.94
  5. Step 5: Solve for x
    x = 252,409,200,319.94/578,065.32
  6. Step 6: Final answer
    x = 436,644.77

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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.