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Finding the Fourth Proportional to 447,315.88, 617,060.72 and 265,898.76

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Solution

The fourth proportional to 447,315.88, 617,060.72 and 265,898.76 is: 366,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,315.88 : 617,060.72 = 265,898.76 : x
  2. Step 2: Convert to fraction form
    447,315.88/617,060.72 = 265,898.76/x
  3. Step 3: Cross multiply
    447,315.88x = 617,060.72 × 265,898.76
  4. Step 4: Simplify right side
    447,315.88x = 164,075,680,292.71
  5. Step 5: Solve for x
    x = 164,075,680,292.71/447,315.88
  6. Step 6: Final answer
    x = 366,800.48

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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.