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Finding the Fourth Proportional to 607,041.36, 910,564.20 and 186,317.28

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Solution

The fourth proportional to 607,041.36, 910,564.20 and 186,317.28 is: 279,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,041.36 : 910,564.20 = 186,317.28 : x
  2. Step 2: Convert to fraction form
    607,041.36/910,564.20 = 186,317.28/x
  3. Step 3: Cross multiply
    607,041.36x = 910,564.20 × 186,317.28
  4. Step 4: Simplify right side
    607,041.36x = 169,653,845,009.38
  5. Step 5: Solve for x
    x = 169,653,845,009.38/607,041.36
  6. Step 6: Final answer
    x = 279,476.58

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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.