Home / 687,534.39-948,783.16-381,592.82

Finding the Fourth Proportional to 687,534.39, 948,783.16 and 381,592.82

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Solution

The fourth proportional to 687,534.39, 948,783.16 and 381,592.82 is: 526,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,534.39 : 948,783.16 = 381,592.82 : x
  2. Step 2: Convert to fraction form
    687,534.39/948,783.16 = 381,592.82/x
  3. Step 3: Cross multiply
    687,534.39x = 948,783.16 × 381,592.82
  4. Step 4: Simplify right side
    687,534.39x = 362,048,844,441.86
  5. Step 5: Solve for x
    x = 362,048,844,441.86/687,534.39
  6. Step 6: Final answer
    x = 526,590.16

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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.