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Finding the Fourth Proportional to 581,856.76, 872,776.36 and 261,782.60

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Solution

The fourth proportional to 581,856.76, 872,776.36 and 261,782.60 is: 392,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,856.76 : 872,776.36 = 261,782.60 : x
  2. Step 2: Convert to fraction form
    581,856.76/872,776.36 = 261,782.60/x
  3. Step 3: Cross multiply
    581,856.76x = 872,776.36 × 261,782.60
  4. Step 4: Simplify right side
    581,856.76x = 228,477,664,739.34
  5. Step 5: Solve for x
    x = 228,477,664,739.34/581,856.76
  6. Step 6: Final answer
    x = 392,669.95

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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.