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Finding the Fourth Proportional to 707,625.45, 976,513.48 and 401,699.16

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Solution

The fourth proportional to 707,625.45, 976,513.48 and 401,699.16 is: 554,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,625.45 : 976,513.48 = 401,699.16 : x
  2. Step 2: Convert to fraction form
    707,625.45/976,513.48 = 401,699.16/x
  3. Step 3: Cross multiply
    707,625.45x = 976,513.48 × 401,699.16
  4. Step 4: Simplify right side
    707,625.45x = 392,264,643,640.43
  5. Step 5: Solve for x
    x = 392,264,643,640.43/707,625.45
  6. Step 6: Final answer
    x = 554,339.37

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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.