Home / 714,241.32-985,681.46-391,962.96

Finding the Fourth Proportional to 714,241.32, 985,681.46 and 391,962.96

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Solution

The fourth proportional to 714,241.32, 985,681.46 and 391,962.96 is: 540,924.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,241.32 : 985,681.46 = 391,962.96 : x
  2. Step 2: Convert to fraction form
    714,241.32/985,681.46 = 391,962.96/x
  3. Step 3: Cross multiply
    714,241.32x = 985,681.46 × 391,962.96
  4. Step 4: Simplify right side
    714,241.32x = 386,350,622,678.72
  5. Step 5: Solve for x
    x = 386,350,622,678.72/714,241.32
  6. Step 6: Final answer
    x = 540,924.49

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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.