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Finding the Fourth Proportional to 568,746.79, 785,021.84 and 353,764.69

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Solution

The fourth proportional to 568,746.79, 785,021.84 and 353,764.69 is: 488,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,746.79 : 785,021.84 = 353,764.69 : x
  2. Step 2: Convert to fraction form
    568,746.79/785,021.84 = 353,764.69/x
  3. Step 3: Cross multiply
    568,746.79x = 785,021.84 × 353,764.69
  4. Step 4: Simplify right side
    568,746.79x = 277,713,007,870.83
  5. Step 5: Solve for x
    x = 277,713,007,870.83/568,746.79
  6. Step 6: Final answer
    x = 488,289.36

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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.