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Finding the Fourth Proportional to 262,345.86, 391,472.64 and 234,071.55

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Solution

The fourth proportional to 262,345.86, 391,472.64 and 234,071.55 is: 349,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,345.86 : 391,472.64 = 234,071.55 : x
  2. Step 2: Convert to fraction form
    262,345.86/391,472.64 = 234,071.55/x
  3. Step 3: Cross multiply
    262,345.86x = 391,472.64 × 234,071.55
  4. Step 4: Simplify right side
    262,345.86x = 91,632,607,627.39
  5. Step 5: Solve for x
    x = 91,632,607,627.39/262,345.86
  6. Step 6: Final answer
    x = 349,281.70

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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.