Home / 330,090.40-455,526.12-186,878.08

Finding the Fourth Proportional to 330,090.40, 455,526.12 and 186,878.08

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Solution

The fourth proportional to 330,090.40, 455,526.12 and 186,878.08 is: 257,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,090.40 : 455,526.12 = 186,878.08 : x
  2. Step 2: Convert to fraction form
    330,090.40/455,526.12 = 186,878.08/x
  3. Step 3: Cross multiply
    330,090.40x = 455,526.12 × 186,878.08
  4. Step 4: Simplify right side
    330,090.40x = 85,127,846,695.45
  5. Step 5: Solve for x
    x = 85,127,846,695.45/330,090.40
  6. Step 6: Final answer
    x = 257,892.52

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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.