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Finding the Fourth Proportional to 532,054.40, 797,044.80 and 321,065.60

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Solution

The fourth proportional to 532,054.40, 797,044.80 and 321,065.60 is: 480,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,054.40 : 797,044.80 = 321,065.60 : x
  2. Step 2: Convert to fraction form
    532,054.40/797,044.80 = 321,065.60/x
  3. Step 3: Cross multiply
    532,054.40x = 797,044.80 × 321,065.60
  4. Step 4: Simplify right side
    532,054.40x = 255,903,666,938.88
  5. Step 5: Solve for x
    x = 255,903,666,938.88/532,054.40
  6. Step 6: Final answer
    x = 480,972.75

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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.