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Finding the Fourth Proportional to 388,653.59, 536,343.53 and 227,477.16

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Solution

The fourth proportional to 388,653.59, 536,343.53 and 227,477.16 is: 313,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,653.59 : 536,343.53 = 227,477.16 : x
  2. Step 2: Convert to fraction form
    388,653.59/536,343.53 = 227,477.16/x
  3. Step 3: Cross multiply
    388,653.59x = 536,343.53 × 227,477.16
  4. Step 4: Simplify right side
    388,653.59x = 122,005,901,851.39
  5. Step 5: Solve for x
    x = 122,005,901,851.39/388,653.59
  6. Step 6: Final answer
    x = 313,919.40

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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.