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Finding the Fourth Proportional to 586,916.82, 810,704.98 and 485,352.54

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Solution

The fourth proportional to 586,916.82, 810,704.98 and 485,352.54 is: 670,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,916.82 : 810,704.98 = 485,352.54 : x
  2. Step 2: Convert to fraction form
    586,916.82/810,704.98 = 485,352.54/x
  3. Step 3: Cross multiply
    586,916.82x = 810,704.98 × 485,352.54
  4. Step 4: Simplify right side
    586,916.82x = 393,477,721,233.65
  5. Step 5: Solve for x
    x = 393,477,721,233.65/586,916.82
  6. Step 6: Final answer
    x = 670,414.80

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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.