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Finding the Fourth Proportional to 357,069.66, 492,771.52 and 213,802.32

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Solution

The fourth proportional to 357,069.66, 492,771.52 and 213,802.32 is: 295,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,069.66 : 492,771.52 = 213,802.32 : x
  2. Step 2: Convert to fraction form
    357,069.66/492,771.52 = 213,802.32/x
  3. Step 3: Cross multiply
    357,069.66x = 492,771.52 × 213,802.32
  4. Step 4: Simplify right side
    357,069.66x = 105,355,694,205.93
  5. Step 5: Solve for x
    x = 105,355,694,205.93/357,069.66
  6. Step 6: Final answer
    x = 295,056.42

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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.