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Finding the Fourth Proportional to 292,283.60, 438,425.40 and 192,556.40

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Solution

The fourth proportional to 292,283.60, 438,425.40 and 192,556.40 is: 288,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,283.60 : 438,425.40 = 192,556.40 : x
  2. Step 2: Convert to fraction form
    292,283.60/438,425.40 = 192,556.40/x
  3. Step 3: Cross multiply
    292,283.60x = 438,425.40 × 192,556.40
  4. Step 4: Simplify right side
    292,283.60x = 84,421,616,692.56
  5. Step 5: Solve for x
    x = 84,421,616,692.56/292,283.60
  6. Step 6: Final answer
    x = 288,834.60

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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.