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Finding the Fourth Proportional to 573,677.40, 860,516.10 and 258,749.40

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Solution

The fourth proportional to 573,677.40, 860,516.10 and 258,749.40 is: 388,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,677.40 : 860,516.10 = 258,749.40 : x
  2. Step 2: Convert to fraction form
    573,677.40/860,516.10 = 258,749.40/x
  3. Step 3: Cross multiply
    573,677.40x = 860,516.10 × 258,749.40
  4. Step 4: Simplify right side
    573,677.40x = 222,658,024,565.34
  5. Step 5: Solve for x
    x = 222,658,024,565.34/573,677.40
  6. Step 6: Final answer
    x = 388,124.10

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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.