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Finding the Fourth Proportional to 518,827.08, 778,477.06 and 266,284.89

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Solution

The fourth proportional to 518,827.08, 778,477.06 and 266,284.89 is: 399,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,827.08 : 778,477.06 = 266,284.89 : x
  2. Step 2: Convert to fraction form
    518,827.08/778,477.06 = 266,284.89/x
  3. Step 3: Cross multiply
    518,827.08x = 778,477.06 × 266,284.89
  4. Step 4: Simplify right side
    518,827.08x = 207,296,678,289.62
  5. Step 5: Solve for x
    x = 207,296,678,289.62/518,827.08
  6. Step 6: Final answer
    x = 399,548.69

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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.