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Finding the Fourth Proportional to 671,132.47, 926,162.96 and 369,326.47

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Solution

The fourth proportional to 671,132.47, 926,162.96 and 369,326.47 is: 509,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,132.47 : 926,162.96 = 369,326.47 : x
  2. Step 2: Convert to fraction form
    671,132.47/926,162.96 = 369,326.47/x
  3. Step 3: Cross multiply
    671,132.47x = 926,162.96 × 369,326.47
  4. Step 4: Simplify right side
    671,132.47x = 342,056,496,661.55
  5. Step 5: Solve for x
    x = 342,056,496,661.55/671,132.47
  6. Step 6: Final answer
    x = 509,670.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.