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Finding the Fourth Proportional to 671,948.93, 927,290.77 and 400,026.26

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Solution

The fourth proportional to 671,948.93, 927,290.77 and 400,026.26 is: 552,036.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,948.93 : 927,290.77 = 400,026.26 : x
  2. Step 2: Convert to fraction form
    671,948.93/927,290.77 = 400,026.26/x
  3. Step 3: Cross multiply
    671,948.93x = 927,290.77 × 400,026.26
  4. Step 4: Simplify right side
    671,948.93x = 370,940,659,973.78
  5. Step 5: Solve for x
    x = 370,940,659,973.78/671,948.93
  6. Step 6: Final answer
    x = 552,036.98

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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.