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Finding the Fourth Proportional to 556,751.25, 836,682.09 and 520,903.89

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Solution

The fourth proportional to 556,751.25, 836,682.09 and 520,903.89 is: 782,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,751.25 : 836,682.09 = 520,903.89 : x
  2. Step 2: Convert to fraction form
    556,751.25/836,682.09 = 520,903.89/x
  3. Step 3: Cross multiply
    556,751.25x = 836,682.09 × 520,903.89
  4. Step 4: Simplify right side
    556,751.25x = 435,830,955,374.33
  5. Step 5: Solve for x
    x = 435,830,955,374.33/556,751.25
  6. Step 6: Final answer
    x = 782,810.91

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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.