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Finding the Fourth Proportional to 452,045.45, 680,775.17 and 411,689.22

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Solution

The fourth proportional to 452,045.45, 680,775.17 and 411,689.22 is: 619,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,045.45 : 680,775.17 = 411,689.22 : x
  2. Step 2: Convert to fraction form
    452,045.45/680,775.17 = 411,689.22/x
  3. Step 3: Cross multiply
    452,045.45x = 680,775.17 × 411,689.22
  4. Step 4: Simplify right side
    452,045.45x = 280,267,796,674.22
  5. Step 5: Solve for x
    x = 280,267,796,674.22/452,045.45
  6. Step 6: Final answer
    x = 619,999.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.