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Finding the Fourth Proportional to 511,995, 706,818.71 and 374,019

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Solution

The fourth proportional to 511,995, 706,818.71 and 374,019 is: 516,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,995 : 706,818.71 = 374,019 : x
  2. Step 2: Convert to fraction form
    511,995/706,818.71 = 374,019/x
  3. Step 3: Cross multiply
    511,995x = 706,818.71 × 374,019
  4. Step 4: Simplify right side
    511,995x = 264,363,625,225.40
  5. Step 5: Solve for x
    x = 264,363,625,225.40/511,995
  6. Step 6: Final answer
    x = 516,340.25

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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.