Home / 859,390.32-1,186,505.28-587,910.72

Finding the Fourth Proportional to 859,390.32, 1,186,505.28 and 587,910.72

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Solution

The fourth proportional to 859,390.32, 1,186,505.28 and 587,910.72 is: 811,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,390.32 : 1,186,505.28 = 587,910.72 : x
  2. Step 2: Convert to fraction form
    859,390.32/1,186,505.28 = 587,910.72/x
  3. Step 3: Cross multiply
    859,390.32x = 1,186,505.28 × 587,910.72
  4. Step 4: Simplify right side
    859,390.32x = 697,559,173,448.60
  5. Step 5: Solve for x
    x = 697,559,173,448.60/859,390.32
  6. Step 6: Final answer
    x = 811,690.75

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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.