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Finding the Fourth Proportional to 518,740.99, 778,179.57 and 203,156.89

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Solution

The fourth proportional to 518,740.99, 778,179.57 and 203,156.89 is: 304,762.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,740.99 : 778,179.57 = 203,156.89 : x
  2. Step 2: Convert to fraction form
    518,740.99/778,179.57 = 203,156.89/x
  3. Step 3: Cross multiply
    518,740.99x = 778,179.57 × 203,156.89
  4. Step 4: Simplify right side
    518,740.99x = 158,092,541,302.74
  5. Step 5: Solve for x
    x = 158,092,541,302.74/518,740.99
  6. Step 6: Final answer
    x = 304,762.00

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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.