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Finding the Fourth Proportional to 519,771.58, 717,277.04 and 290,332.06

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Solution

The fourth proportional to 519,771.58, 717,277.04 and 290,332.06 is: 400,653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,771.58 : 717,277.04 = 290,332.06 : x
  2. Step 2: Convert to fraction form
    519,771.58/717,277.04 = 290,332.06/x
  3. Step 3: Cross multiply
    519,771.58x = 717,277.04 × 290,332.06
  4. Step 4: Simplify right side
    519,771.58x = 208,248,520,613.90
  5. Step 5: Solve for x
    x = 208,248,520,613.90/519,771.58
  6. Step 6: Final answer
    x = 400,653.92

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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.