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Finding the Fourth Proportional to 1,564,388, 2,158,855.53 and 848,996

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Solution

The fourth proportional to 1,564,388, 2,158,855.53 and 848,996 is: 1,171,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,388 : 2,158,855.53 = 848,996 : x
  2. Step 2: Convert to fraction form
    1,564,388/2,158,855.53 = 848,996/x
  3. Step 3: Cross multiply
    1,564,388x = 2,158,855.53 × 848,996
  4. Step 4: Simplify right side
    1,564,388x = 1,832,859,709,547.88
  5. Step 5: Solve for x
    x = 1,832,859,709,547.88/1,564,388
  6. Step 6: Final answer
    x = 1,171,614.53

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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.