Home / 330,666.02-456,354.78-187,410.68

Finding the Fourth Proportional to 330,666.02, 456,354.78 and 187,410.68

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Solution

The fourth proportional to 330,666.02, 456,354.78 and 187,410.68 is: 258,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,666.02 : 456,354.78 = 187,410.68 : x
  2. Step 2: Convert to fraction form
    330,666.02/456,354.78 = 187,410.68/x
  3. Step 3: Cross multiply
    330,666.02x = 456,354.78 × 187,410.68
  4. Step 4: Simplify right side
    330,666.02x = 85,525,759,641.05
  5. Step 5: Solve for x
    x = 85,525,759,641.05/330,666.02
  6. Step 6: Final answer
    x = 258,646.96

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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.