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Finding the Fourth Proportional to 586,448.90, 878,636.55 and 520,093.70

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Solution

The fourth proportional to 586,448.90, 878,636.55 and 520,093.70 is: 779,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,448.90 : 878,636.55 = 520,093.70 : x
  2. Step 2: Convert to fraction form
    586,448.90/878,636.55 = 520,093.70/x
  3. Step 3: Cross multiply
    586,448.90x = 878,636.55 × 520,093.70
  4. Step 4: Simplify right side
    586,448.90x = 456,973,334,244.74
  5. Step 5: Solve for x
    x = 456,973,334,244.74/586,448.90
  6. Step 6: Final answer
    x = 779,221.06

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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.