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Finding the Fourth Proportional to 262,404.60, 393,606.90 and 84,924.60

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Solution

The fourth proportional to 262,404.60, 393,606.90 and 84,924.60 is: 127,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,404.60 : 393,606.90 = 84,924.60 : x
  2. Step 2: Convert to fraction form
    262,404.60/393,606.90 = 84,924.60/x
  3. Step 3: Cross multiply
    262,404.60x = 393,606.90 × 84,924.60
  4. Step 4: Simplify right side
    262,404.60x = 33,426,908,539.74
  5. Step 5: Solve for x
    x = 33,426,908,539.74/262,404.60
  6. Step 6: Final answer
    x = 127,386.90

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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.