Home / 679,904.06-938,290.64-374,003.19

Finding the Fourth Proportional to 679,904.06, 938,290.64 and 374,003.19

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Solution

The fourth proportional to 679,904.06, 938,290.64 and 374,003.19 is: 516,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,904.06 : 938,290.64 = 374,003.19 : x
  2. Step 2: Convert to fraction form
    679,904.06/938,290.64 = 374,003.19/x
  3. Step 3: Cross multiply
    679,904.06x = 938,290.64 × 374,003.19
  4. Step 4: Simplify right side
    679,904.06x = 350,923,690,637.13
  5. Step 5: Solve for x
    x = 350,923,690,637.13/679,904.06
  6. Step 6: Final answer
    x = 516,137.08

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Double scale
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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.