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Finding the Fourth Proportional to 584,790.47, 807,013.28 and 316,518.47

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Solution

The fourth proportional to 584,790.47, 807,013.28 and 316,518.47 is: 436,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,790.47 : 807,013.28 = 316,518.47 : x
  2. Step 2: Convert to fraction form
    584,790.47/807,013.28 = 316,518.47/x
  3. Step 3: Cross multiply
    584,790.47x = 807,013.28 × 316,518.47
  4. Step 4: Simplify right side
    584,790.47x = 255,434,606,657.40
  5. Step 5: Solve for x
    x = 255,434,606,657.40/584,790.47
  6. Step 6: Final answer
    x = 436,796.80

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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.