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Finding the Fourth Proportional to 690,285.04, 952,657.68 and 403,786.96

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Solution

The fourth proportional to 690,285.04, 952,657.68 and 403,786.96 is: 557,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,285.04 : 952,657.68 = 403,786.96 : x
  2. Step 2: Convert to fraction form
    690,285.04/952,657.68 = 403,786.96/x
  3. Step 3: Cross multiply
    690,285.04x = 952,657.68 × 403,786.96
  4. Step 4: Simplify right side
    690,285.04x = 384,670,748,527.85
  5. Step 5: Solve for x
    x = 384,670,748,527.85/690,285.04
  6. Step 6: Final answer
    x = 557,263.63

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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.