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Finding the Fourth Proportional to 519,762.30, 779,643.45 and 351,472.65

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Solution

The fourth proportional to 519,762.30, 779,643.45 and 351,472.65 is: 527,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,762.30 : 779,643.45 = 351,472.65 : x
  2. Step 2: Convert to fraction form
    519,762.30/779,643.45 = 351,472.65/x
  3. Step 3: Cross multiply
    519,762.30x = 779,643.45 × 351,472.65
  4. Step 4: Simplify right side
    519,762.30x = 274,023,349,426.64
  5. Step 5: Solve for x
    x = 274,023,349,426.64/519,762.30
  6. Step 6: Final answer
    x = 527,208.98

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Similar ratio
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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.