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Finding the Fourth Proportional to 511,995.15, 706,818.93 and 374,019.15

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Solution

The fourth proportional to 511,995.15, 706,818.93 and 374,019.15 is: 516,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,995.15 : 706,818.93 = 374,019.15 : x
  2. Step 2: Convert to fraction form
    511,995.15/706,818.93 = 374,019.15/x
  3. Step 3: Cross multiply
    511,995.15x = 706,818.93 × 374,019.15
  4. Step 4: Simplify right side
    511,995.15x = 264,363,815,402.51
  5. Step 5: Solve for x
    x = 264,363,815,402.51/511,995.15
  6. Step 6: Final answer
    x = 516,340.47

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Double scale
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Similar ratio
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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.