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Finding the Fourth Proportional to 575,899.20, 863,840.70 and 260,355.60

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Solution

The fourth proportional to 575,899.20, 863,840.70 and 260,355.60 is: 390,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,899.20 : 863,840.70 = 260,355.60 : x
  2. Step 2: Convert to fraction form
    575,899.20/863,840.70 = 260,355.60/x
  3. Step 3: Cross multiply
    575,899.20x = 863,840.70 × 260,355.60
  4. Step 4: Simplify right side
    575,899.20x = 224,905,763,752.92
  5. Step 5: Solve for x
    x = 224,905,763,752.92/575,899.20
  6. Step 6: Final answer
    x = 390,529.74

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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.