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Finding the Fourth Proportional to 585,213.60, 877,820.40 and 396,256.80

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Solution

The fourth proportional to 585,213.60, 877,820.40 and 396,256.80 is: 594,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,213.60 : 877,820.40 = 396,256.80 : x
  2. Step 2: Convert to fraction form
    585,213.60/877,820.40 = 396,256.80/x
  3. Step 3: Cross multiply
    585,213.60x = 877,820.40 × 396,256.80
  4. Step 4: Simplify right side
    585,213.60x = 347,842,302,678.72
  5. Step 5: Solve for x
    x = 347,842,302,678.72/585,213.60
  6. Step 6: Final answer
    x = 594,385.20

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Similar ratio
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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.