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Finding the Fourth Proportional to 264,637.10, 396,955.65 and 260,029.10

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Solution

The fourth proportional to 264,637.10, 396,955.65 and 260,029.10 is: 390,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,637.10 : 396,955.65 = 260,029.10 : x
  2. Step 2: Convert to fraction form
    264,637.10/396,955.65 = 260,029.10/x
  3. Step 3: Cross multiply
    264,637.10x = 396,955.65 × 260,029.10
  4. Step 4: Simplify right side
    264,637.10x = 103,220,020,409.42
  5. Step 5: Solve for x
    x = 103,220,020,409.42/264,637.10
  6. Step 6: Final answer
    x = 390,043.65

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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.