Home / 711,624.51-982,199.47-491,171.32

Finding the Fourth Proportional to 711,624.51, 982,199.47 and 491,171.32

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Solution

The fourth proportional to 711,624.51, 982,199.47 and 491,171.32 is: 677,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,624.51 : 982,199.47 = 491,171.32 : x
  2. Step 2: Convert to fraction form
    711,624.51/982,199.47 = 491,171.32/x
  3. Step 3: Cross multiply
    711,624.51x = 982,199.47 × 491,171.32
  4. Step 4: Simplify right side
    711,624.51x = 482,428,214,557.02
  5. Step 5: Solve for x
    x = 482,428,214,557.02/711,624.51
  6. Step 6: Final answer
    x = 677,925.23

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Double scale
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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.