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Finding the Fourth Proportional to 653,365, 898,844.34 and 625,371.40

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Solution

The fourth proportional to 653,365, 898,844.34 and 625,371.40 is: 860,333.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,365 : 898,844.34 = 625,371.40 : x
  2. Step 2: Convert to fraction form
    653,365/898,844.34 = 625,371.40/x
  3. Step 3: Cross multiply
    653,365x = 898,844.34 × 625,371.40
  4. Step 4: Simplify right side
    653,365x = 562,111,543,287.88
  5. Step 5: Solve for x
    x = 562,111,543,287.88/653,365
  6. Step 6: Final answer
    x = 860,333.11

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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.