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Finding the Fourth Proportional to 532,783.70, 735,255.93 and 318,048.39

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Solution

The fourth proportional to 532,783.70, 735,255.93 and 318,048.39 is: 438,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,783.70 : 735,255.93 = 318,048.39 : x
  2. Step 2: Convert to fraction form
    532,783.70/735,255.93 = 318,048.39/x
  3. Step 3: Cross multiply
    532,783.70x = 735,255.93 × 318,048.39
  4. Step 4: Simplify right side
    532,783.70x = 233,846,964,774.45
  5. Step 5: Solve for x
    x = 233,846,964,774.45/532,783.70
  6. Step 6: Final answer
    x = 438,915.39

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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.