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Finding the Fourth Proportional to 305,720.61, 456,522.18 and 249,671.91

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Solution

The fourth proportional to 305,720.61, 456,522.18 and 249,671.91 is: 372,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,720.61 : 456,522.18 = 249,671.91 : x
  2. Step 2: Convert to fraction form
    305,720.61/456,522.18 = 249,671.91/x
  3. Step 3: Cross multiply
    305,720.61x = 456,522.18 × 249,671.91
  4. Step 4: Simplify right side
    305,720.61x = 113,980,764,637.96
  5. Step 5: Solve for x
    x = 113,980,764,637.96/305,720.61
  6. Step 6: Final answer
    x = 372,826.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.