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Finding the Fourth Proportional to 526,087.78, 725,829.05 and 321,925.86

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Solution

The fourth proportional to 526,087.78, 725,829.05 and 321,925.86 is: 444,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,087.78 : 725,829.05 = 321,925.86 : x
  2. Step 2: Convert to fraction form
    526,087.78/725,829.05 = 321,925.86/x
  3. Step 3: Cross multiply
    526,087.78x = 725,829.05 × 321,925.86
  4. Step 4: Simplify right side
    526,087.78x = 233,663,141,939.05
  5. Step 5: Solve for x
    x = 233,663,141,939.05/526,087.78
  6. Step 6: Final answer
    x = 444,152.39

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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.