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Finding the Fourth Proportional to 313,634.60, 469,992.60 and 155,547.32

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Solution

The fourth proportional to 313,634.60, 469,992.60 and 155,547.32 is: 233,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,634.60 : 469,992.60 = 155,547.32 : x
  2. Step 2: Convert to fraction form
    313,634.60/469,992.60 = 155,547.32/x
  3. Step 3: Cross multiply
    313,634.60x = 469,992.60 × 155,547.32
  4. Step 4: Simplify right side
    313,634.60x = 73,106,089,349.83
  5. Step 5: Solve for x
    x = 73,106,089,349.83/313,634.60
  6. Step 6: Final answer
    x = 233,093.19

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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.