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Finding the Fourth Proportional to 575,276.40, 863,303.40 and 322,556.40

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Solution

The fourth proportional to 575,276.40, 863,303.40 and 322,556.40 is: 484,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,276.40 : 863,303.40 = 322,556.40 : x
  2. Step 2: Convert to fraction form
    575,276.40/863,303.40 = 322,556.40/x
  3. Step 3: Cross multiply
    575,276.40x = 863,303.40 × 322,556.40
  4. Step 4: Simplify right side
    575,276.40x = 278,464,036,811.76
  5. Step 5: Solve for x
    x = 278,464,036,811.76/575,276.40
  6. Step 6: Final answer
    x = 484,052.60

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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.