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Finding the Fourth Proportional to 577,756.80, 866,246.40 and 262,051.20

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Solution

The fourth proportional to 577,756.80, 866,246.40 and 262,051.20 is: 392,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,756.80 : 866,246.40 = 262,051.20 : x
  2. Step 2: Convert to fraction form
    577,756.80/866,246.40 = 262,051.20/x
  3. Step 3: Cross multiply
    577,756.80x = 866,246.40 × 262,051.20
  4. Step 4: Simplify right side
    577,756.80x = 227,000,908,615.68
  5. Step 5: Solve for x
    x = 227,000,908,615.68/577,756.80
  6. Step 6: Final answer
    x = 392,900.45

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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.