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Finding the Fourth Proportional to 280,156.96, 418,050.35 and 249,963.64

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Solution

The fourth proportional to 280,156.96, 418,050.35 and 249,963.64 is: 372,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,156.96 : 418,050.35 = 249,963.64 : x
  2. Step 2: Convert to fraction form
    280,156.96/418,050.35 = 249,963.64/x
  3. Step 3: Cross multiply
    280,156.96x = 418,050.35 × 249,963.64
  4. Step 4: Simplify right side
    280,156.96x = 104,497,387,189.27
  5. Step 5: Solve for x
    x = 104,497,387,189.27/280,156.96
  6. Step 6: Final answer
    x = 372,995.86

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1.5x scale

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.