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Finding the Fourth Proportional to 421,594.36, 581,636.76 and 268,605.16

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Solution

The fourth proportional to 421,594.36, 581,636.76 and 268,605.16 is: 370,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,594.36 : 581,636.76 = 268,605.16 : x
  2. Step 2: Convert to fraction form
    421,594.36/581,636.76 = 268,605.16/x
  3. Step 3: Cross multiply
    421,594.36x = 581,636.76 × 268,605.16
  4. Step 4: Simplify right side
    421,594.36x = 156,230,634,981.68
  5. Step 5: Solve for x
    x = 156,230,634,981.68/421,594.36
  6. Step 6: Final answer
    x = 370,570.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.