Home / 931,086.60-1,396,602.28-257,208.45

Finding the Fourth Proportional to 931,086.60, 1,396,602.28 and 257,208.45

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Solution

The fourth proportional to 931,086.60, 1,396,602.28 and 257,208.45 is: 385,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,086.60 : 1,396,602.28 = 257,208.45 : x
  2. Step 2: Convert to fraction form
    931,086.60/1,396,602.28 = 257,208.45/x
  3. Step 3: Cross multiply
    931,086.60x = 1,396,602.28 × 257,208.45
  4. Step 4: Simplify right side
    931,086.60x = 359,217,907,705.27
  5. Step 5: Solve for x
    x = 359,217,907,705.27/931,086.60
  6. Step 6: Final answer
    x = 385,805.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.