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Finding the Fourth Proportional to 556,703.56, 768,876.80 and 375,097.48

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Solution

The fourth proportional to 556,703.56, 768,876.80 and 375,097.48 is: 518,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,703.56 : 768,876.80 = 375,097.48 : x
  2. Step 2: Convert to fraction form
    556,703.56/768,876.80 = 375,097.48/x
  3. Step 3: Cross multiply
    556,703.56x = 768,876.80 × 375,097.48
  4. Step 4: Simplify right side
    556,703.56x = 288,403,750,110.46
  5. Step 5: Solve for x
    x = 288,403,750,110.46/556,703.56
  6. Step 6: Final answer
    x = 518,056.23

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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.