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Finding the Fourth Proportional to 388,763.93, 536,499.59 and 216,677.09

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Solution

The fourth proportional to 388,763.93, 536,499.59 and 216,677.09 is: 299,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,763.93 : 536,499.59 = 216,677.09 : x
  2. Step 2: Convert to fraction form
    388,763.93/536,499.59 = 216,677.09/x
  3. Step 3: Cross multiply
    388,763.93x = 536,499.59 × 216,677.09
  4. Step 4: Simplify right side
    388,763.93x = 116,247,166,181.51
  5. Step 5: Solve for x
    x = 116,247,166,181.51/388,763.93
  6. Step 6: Final answer
    x = 299,017.37

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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.