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Finding the Fourth Proportional to 767,388, 1,059,070.28 and 573,458.97

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Solution

The fourth proportional to 767,388, 1,059,070.28 and 573,458.97 is: 791,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,388 : 1,059,070.28 = 573,458.97 : x
  2. Step 2: Convert to fraction form
    767,388/1,059,070.28 = 573,458.97/x
  3. Step 3: Cross multiply
    767,388x = 1,059,070.28 × 573,458.97
  4. Step 4: Simplify right side
    767,388x = 607,333,349,059.12
  5. Step 5: Solve for x
    x = 607,333,349,059.12/767,388
  6. Step 6: Final answer
    x = 791,429.30

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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.