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Finding the Fourth Proportional to 910,774.80, 1,364,995.80 and 699,364.80

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Solution

The fourth proportional to 910,774.80, 1,364,995.80 and 699,364.80 is: 1,048,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,774.80 : 1,364,995.80 = 699,364.80 : x
  2. Step 2: Convert to fraction form
    910,774.80/1,364,995.80 = 699,364.80/x
  3. Step 3: Cross multiply
    910,774.80x = 1,364,995.80 × 699,364.80
  4. Step 4: Simplify right side
    910,774.80x = 954,630,014,667.84
  5. Step 5: Solve for x
    x = 954,630,014,667.84/910,774.80
  6. Step 6: Final answer
    x = 1,048,151.55

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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.