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Finding the Fourth Proportional to 464,728.83, 641,323.98 and 260,779.28

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Solution

The fourth proportional to 464,728.83, 641,323.98 and 260,779.28 is: 359,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,728.83 : 641,323.98 = 260,779.28 : x
  2. Step 2: Convert to fraction form
    464,728.83/641,323.98 = 260,779.28/x
  3. Step 3: Cross multiply
    464,728.83x = 641,323.98 × 260,779.28
  4. Step 4: Simplify right side
    464,728.83x = 167,244,002,544.52
  5. Step 5: Solve for x
    x = 167,244,002,544.52/464,728.83
  6. Step 6: Final answer
    x = 359,874.39

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1.5x scale

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.