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Finding the Fourth Proportional to 335,686.40, 503,529.60 and 186,387.20

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Solution

The fourth proportional to 335,686.40, 503,529.60 and 186,387.20 is: 279,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,686.40 : 503,529.60 = 186,387.20 : x
  2. Step 2: Convert to fraction form
    335,686.40/503,529.60 = 186,387.20/x
  3. Step 3: Cross multiply
    335,686.40x = 503,529.60 × 186,387.20
  4. Step 4: Simplify right side
    335,686.40x = 93,851,472,261.12
  5. Step 5: Solve for x
    x = 93,851,472,261.12/335,686.40
  6. Step 6: Final answer
    x = 279,580.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.