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Finding the Fourth Proportional to 261,156.44, 358,048.79 and 256,432.52

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Solution

The fourth proportional to 261,156.44, 358,048.79 and 256,432.52 is: 351,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,156.44 : 358,048.79 = 256,432.52 : x
  2. Step 2: Convert to fraction form
    261,156.44/358,048.79 = 256,432.52/x
  3. Step 3: Cross multiply
    261,156.44x = 358,048.79 × 256,432.52
  4. Step 4: Simplify right side
    261,156.44x = 91,815,350,430.24
  5. Step 5: Solve for x
    x = 91,815,350,430.24/261,156.44
  6. Step 6: Final answer
    x = 351,572.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.