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Finding the Fourth Proportional to 768,602.94, 1,154,654.01 and 556,026.54

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Solution

The fourth proportional to 768,602.94, 1,154,654.01 and 556,026.54 is: 835,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,602.94 : 1,154,654.01 = 556,026.54 : x
  2. Step 2: Convert to fraction form
    768,602.94/1,154,654.01 = 556,026.54/x
  3. Step 3: Cross multiply
    768,602.94x = 1,154,654.01 × 556,026.54
  4. Step 4: Simplify right side
    768,602.94x = 642,018,274,077.43
  5. Step 5: Solve for x
    x = 642,018,274,077.43/768,602.94
  6. Step 6: Final answer
    x = 835,305.51

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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.