Home / 388,788.80-536,463.58-216,669.17

Finding the Fourth Proportional to 388,788.80, 536,463.58 and 216,669.17

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Solution

The fourth proportional to 388,788.80, 536,463.58 and 216,669.17 is: 298,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,788.80 : 536,463.58 = 216,669.17 : x
  2. Step 2: Convert to fraction form
    388,788.80/536,463.58 = 216,669.17/x
  3. Step 3: Cross multiply
    388,788.80x = 536,463.58 × 216,669.17
  4. Step 4: Simplify right side
    388,788.80x = 116,235,116,656.94
  5. Step 5: Solve for x
    x = 116,235,116,656.94/388,788.80
  6. Step 6: Final answer
    x = 298,967.25

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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.