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Finding the Fourth Proportional to 292,521.60, 438,782.40 and 174,326.40

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Solution

The fourth proportional to 292,521.60, 438,782.40 and 174,326.40 is: 261,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,521.60 : 438,782.40 = 174,326.40 : x
  2. Step 2: Convert to fraction form
    292,521.60/438,782.40 = 174,326.40/x
  3. Step 3: Cross multiply
    292,521.60x = 438,782.40 × 174,326.40
  4. Step 4: Simplify right side
    292,521.60x = 76,491,356,175.36
  5. Step 5: Solve for x
    x = 76,491,356,175.36/292,521.60
  6. Step 6: Final answer
    x = 261,489.60

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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.