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Finding the Fourth Proportional to 475,840.10, 656,677.74 and 260,989.22

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Solution

The fourth proportional to 475,840.10, 656,677.74 and 260,989.22 is: 360,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,840.10 : 656,677.74 = 260,989.22 : x
  2. Step 2: Convert to fraction form
    475,840.10/656,677.74 = 260,989.22/x
  3. Step 3: Cross multiply
    475,840.10x = 656,677.74 × 260,989.22
  4. Step 4: Simplify right side
    475,840.10x = 171,385,811,153.96
  5. Step 5: Solve for x
    x = 171,385,811,153.96/475,840.10
  6. Step 6: Final answer
    x = 360,175.22

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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.