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Finding the Fourth Proportional to 619,209.90, 927,925.47 and 264,128.58

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Solution

The fourth proportional to 619,209.90, 927,925.47 and 264,128.58 is: 395,813.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,209.90 : 927,925.47 = 264,128.58 : x
  2. Step 2: Convert to fraction form
    619,209.90/927,925.47 = 264,128.58/x
  3. Step 3: Cross multiply
    619,209.90x = 927,925.47 × 264,128.58
  4. Step 4: Simplify right side
    619,209.90x = 245,091,636,736.93
  5. Step 5: Solve for x
    x = 245,091,636,736.93/619,209.90
  6. Step 6: Final answer
    x = 395,813.50

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1.5x scale

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.