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Finding the Fourth Proportional to 348,836.80, 522,088.80 and 243,860.80

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Solution

The fourth proportional to 348,836.80, 522,088.80 and 243,860.80 is: 364,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,836.80 : 522,088.80 = 243,860.80 : x
  2. Step 2: Convert to fraction form
    348,836.80/522,088.80 = 243,860.80/x
  3. Step 3: Cross multiply
    348,836.80x = 522,088.80 × 243,860.80
  4. Step 4: Simplify right side
    348,836.80x = 127,316,992,439.04
  5. Step 5: Solve for x
    x = 127,316,992,439.04/348,836.80
  6. Step 6: Final answer
    x = 364,975.81

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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.