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Finding the Fourth Proportional to 556,809.45, 768,397.03 and 302,160.63

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Solution

The fourth proportional to 556,809.45, 768,397.03 and 302,160.63 is: 416,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,809.45 : 768,397.03 = 302,160.63 : x
  2. Step 2: Convert to fraction form
    556,809.45/768,397.03 = 302,160.63/x
  3. Step 3: Cross multiply
    556,809.45x = 768,397.03 × 302,160.63
  4. Step 4: Simplify right side
    556,809.45x = 232,179,335,040.95
  5. Step 5: Solve for x
    x = 232,179,335,040.95/556,809.45
  6. Step 6: Final answer
    x = 416,981.67

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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.