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Finding the Fourth Proportional to 424,090.85, 636,069.45 and 352,503.46

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Solution

The fourth proportional to 424,090.85, 636,069.45 and 352,503.46 is: 528,699.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,090.85 : 636,069.45 = 352,503.46 : x
  2. Step 2: Convert to fraction form
    424,090.85/636,069.45 = 352,503.46/x
  3. Step 3: Cross multiply
    424,090.85x = 636,069.45 × 352,503.46
  4. Step 4: Simplify right side
    424,090.85x = 224,216,678,744.95
  5. Step 5: Solve for x
    x = 224,216,678,744.95/424,090.85
  6. Step 6: Final answer
    x = 528,699.64

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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.