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Finding the Fourth Proportional to 353,535.60, 529,007.40 and 260,223.60

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Solution

The fourth proportional to 353,535.60, 529,007.40 and 260,223.60 is: 389,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,535.60 : 529,007.40 = 260,223.60 : x
  2. Step 2: Convert to fraction form
    353,535.60/529,007.40 = 260,223.60/x
  3. Step 3: Cross multiply
    353,535.60x = 529,007.40 × 260,223.60
  4. Step 4: Simplify right side
    353,535.60x = 137,660,210,054.64
  5. Step 5: Solve for x
    x = 137,660,210,054.64/353,535.60
  6. Step 6: Final answer
    x = 389,381.47

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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.