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Finding the Fourth Proportional to 573,674.40, 860,511.60 and 258,746.40

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Solution

The fourth proportional to 573,674.40, 860,511.60 and 258,746.40 is: 388,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,674.40 : 860,511.60 = 258,746.40 : x
  2. Step 2: Convert to fraction form
    573,674.40/860,511.60 = 258,746.40/x
  3. Step 3: Cross multiply
    573,674.40x = 860,511.60 × 258,746.40
  4. Step 4: Simplify right side
    573,674.40x = 222,654,278,658.24
  5. Step 5: Solve for x
    x = 222,654,278,658.24/573,674.40
  6. Step 6: Final answer
    x = 388,119.60

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Double scale
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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.