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Finding the Fourth Proportional to 422,666.60, 634,095.59 and 242,835.08

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Solution

The fourth proportional to 422,666.60, 634,095.59 and 242,835.08 is: 364,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,666.60 : 634,095.59 = 242,835.08 : x
  2. Step 2: Convert to fraction form
    422,666.60/634,095.59 = 242,835.08/x
  3. Step 3: Cross multiply
    422,666.60x = 634,095.59 × 242,835.08
  4. Step 4: Simplify right side
    422,666.60x = 153,980,648,940.64
  5. Step 5: Solve for x
    x = 153,980,648,940.64/422,666.60
  6. Step 6: Final answer
    x = 364,307.59

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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.