Home / 714,176.24-985,530.08-391,878.32

Finding the Fourth Proportional to 714,176.24, 985,530.08 and 391,878.32

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Solution

The fourth proportional to 714,176.24, 985,530.08 and 391,878.32 is: 540,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,176.24 : 985,530.08 = 391,878.32 : x
  2. Step 2: Convert to fraction form
    714,176.24/985,530.08 = 391,878.32/x
  3. Step 3: Cross multiply
    714,176.24x = 985,530.08 × 391,878.32
  4. Step 4: Simplify right side
    714,176.24x = 386,207,872,059.87
  5. Step 5: Solve for x
    x = 386,207,872,059.87/714,176.24
  6. Step 6: Final answer
    x = 540,773.90

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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.