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Finding the Fourth Proportional to 575,258.40, 863,276.40 and 322,538.40

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Solution

The fourth proportional to 575,258.40, 863,276.40 and 322,538.40 is: 484,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,258.40 : 863,276.40 = 322,538.40 : x
  2. Step 2: Convert to fraction form
    575,258.40/863,276.40 = 322,538.40/x
  3. Step 3: Cross multiply
    575,258.40x = 863,276.40 × 322,538.40
  4. Step 4: Simplify right side
    575,258.40x = 278,439,788,813.76
  5. Step 5: Solve for x
    x = 278,439,788,813.76/575,258.40
  6. Step 6: Final answer
    x = 484,025.59

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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.