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Finding the Fourth Proportional to 909,812.32, 1,365,901.08 and 699,597.88

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Solution

The fourth proportional to 909,812.32, 1,365,901.08 and 699,597.88 is: 1,050,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,812.32 : 1,365,901.08 = 699,597.88 : x
  2. Step 2: Convert to fraction form
    909,812.32/1,365,901.08 = 699,597.88/x
  3. Step 3: Cross multiply
    909,812.32x = 1,365,901.08 × 699,597.88
  4. Step 4: Simplify right side
    909,812.32x = 955,581,499,857.71
  5. Step 5: Solve for x
    x = 955,581,499,857.71/909,812.32
  6. Step 6: Final answer
    x = 1,050,306.18

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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.