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Finding the Fourth Proportional to 488,636.80, 732,955.20 and 370,538.80

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Solution

The fourth proportional to 488,636.80, 732,955.20 and 370,538.80 is: 555,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,636.80 : 732,955.20 = 370,538.80 : x
  2. Step 2: Convert to fraction form
    488,636.80/732,955.20 = 370,538.80/x
  3. Step 3: Cross multiply
    488,636.80x = 732,955.20 × 370,538.80
  4. Step 4: Simplify right side
    488,636.80x = 271,588,340,261.76
  5. Step 5: Solve for x
    x = 271,588,340,261.76/488,636.80
  6. Step 6: Final answer
    x = 555,808.20

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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.