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Finding the Fourth Proportional to 434,522.80, 651,784.20 and 292,805.20

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Solution

The fourth proportional to 434,522.80, 651,784.20 and 292,805.20 is: 439,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,522.80 : 651,784.20 = 292,805.20 : x
  2. Step 2: Convert to fraction form
    434,522.80/651,784.20 = 292,805.20/x
  3. Step 3: Cross multiply
    434,522.80x = 651,784.20 × 292,805.20
  4. Step 4: Simplify right side
    434,522.80x = 190,845,803,037.84
  5. Step 5: Solve for x
    x = 190,845,803,037.84/434,522.80
  6. Step 6: Final answer
    x = 439,207.80

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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.