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Finding the Fourth Proportional to 556,339.46, 767,753.28 and 301,690.67

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Solution

The fourth proportional to 556,339.46, 767,753.28 and 301,690.67 is: 416,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,339.46 : 767,753.28 = 301,690.67 : x
  2. Step 2: Convert to fraction form
    556,339.46/767,753.28 = 301,690.67/x
  3. Step 3: Cross multiply
    556,339.46x = 767,753.28 × 301,690.67
  4. Step 4: Simplify right side
    556,339.46x = 231,623,997,599.13
  5. Step 5: Solve for x
    x = 231,623,997,599.13/556,339.46
  6. Step 6: Final answer
    x = 416,335.74

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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.