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Finding the Fourth Proportional to 585,586.60, 879,416.70 and 452,789.80

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Solution

The fourth proportional to 585,586.60, 879,416.70 and 452,789.80 is: 679,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,586.60 : 879,416.70 = 452,789.80 : x
  2. Step 2: Convert to fraction form
    585,586.60/879,416.70 = 452,789.80/x
  3. Step 3: Cross multiply
    585,586.60x = 879,416.70 × 452,789.80
  4. Step 4: Simplify right side
    585,586.60x = 398,190,911,709.66
  5. Step 5: Solve for x
    x = 398,190,911,709.66/585,586.60
  6. Step 6: Final answer
    x = 679,986.38

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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.