Home / 386,485.02-533,353.41-216,715.50

Finding the Fourth Proportional to 386,485.02, 533,353.41 and 216,715.50

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Solution

The fourth proportional to 386,485.02, 533,353.41 and 216,715.50 is: 299,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,485.02 : 533,353.41 = 216,715.50 : x
  2. Step 2: Convert to fraction form
    386,485.02/533,353.41 = 216,715.50/x
  3. Step 3: Cross multiply
    386,485.02x = 533,353.41 × 216,715.50
  4. Step 4: Simplify right side
    386,485.02x = 115,585,950,924.86
  5. Step 5: Solve for x
    x = 115,585,950,924.86/386,485.02
  6. Step 6: Final answer
    x = 299,069.68

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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.