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Finding the Fourth Proportional to 355,501.60, 533,252.40 and 307,808.80

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Solution

The fourth proportional to 355,501.60, 533,252.40 and 307,808.80 is: 461,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,501.60 : 533,252.40 = 307,808.80 : x
  2. Step 2: Convert to fraction form
    355,501.60/533,252.40 = 307,808.80/x
  3. Step 3: Cross multiply
    355,501.60x = 533,252.40 × 307,808.80
  4. Step 4: Simplify right side
    355,501.60x = 164,139,781,341.12
  5. Step 5: Solve for x
    x = 164,139,781,341.12/355,501.60
  6. Step 6: Final answer
    x = 461,713.20

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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.