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Finding the Fourth Proportional to 623,595.90, 860,541.39 and 394,276.62

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Solution

The fourth proportional to 623,595.90, 860,541.39 and 394,276.62 is: 544,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,595.90 : 860,541.39 = 394,276.62 : x
  2. Step 2: Convert to fraction form
    623,595.90/860,541.39 = 394,276.62/x
  3. Step 3: Cross multiply
    623,595.90x = 860,541.39 × 394,276.62
  4. Step 4: Simplify right side
    623,595.90x = 339,291,350,619.30
  5. Step 5: Solve for x
    x = 339,291,350,619.30/623,595.90
  6. Step 6: Final answer
    x = 544,088.49

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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.