Home / 714,212.64-985,615.04-391,925.28

Finding the Fourth Proportional to 714,212.64, 985,615.04 and 391,925.28

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Solution

The fourth proportional to 714,212.64, 985,615.04 and 391,925.28 is: 540,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,212.64 : 985,615.04 = 391,925.28 : x
  2. Step 2: Convert to fraction form
    714,212.64/985,615.04 = 391,925.28/x
  3. Step 3: Cross multiply
    714,212.64x = 985,615.04 × 391,925.28
  4. Step 4: Simplify right side
    714,212.64x = 386,287,450,524.21
  5. Step 5: Solve for x
    x = 386,287,450,524.21/714,212.64
  6. Step 6: Final answer
    x = 540,857.76

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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.