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Finding the Fourth Proportional to 916,606, 1,264,924.92 and 514,206.64

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Solution

The fourth proportional to 916,606, 1,264,924.92 and 514,206.64 is: 709,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,606 : 1,264,924.92 = 514,206.64 : x
  2. Step 2: Convert to fraction form
    916,606/1,264,924.92 = 514,206.64/x
  3. Step 3: Cross multiply
    916,606x = 1,264,924.92 × 514,206.64
  4. Step 4: Simplify right side
    916,606x = 650,432,792,965.47
  5. Step 5: Solve for x
    x = 650,432,792,965.47/916,606
  6. Step 6: Final answer
    x = 709,610.01

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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.