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Finding the Fourth Proportional to 1,617,570, 2,232,246.60 and 902,178

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Solution

The fourth proportional to 1,617,570, 2,232,246.60 and 902,178 is: 1,245,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,570 : 2,232,246.60 = 902,178 : x
  2. Step 2: Convert to fraction form
    1,617,570/2,232,246.60 = 902,178/x
  3. Step 3: Cross multiply
    1,617,570x = 2,232,246.60 × 902,178
  4. Step 4: Simplify right side
    1,617,570x = 2,013,883,773,094.80
  5. Step 5: Solve for x
    x = 2,013,883,773,094.80/1,617,570
  6. Step 6: Final answer
    x = 1,245,005.64

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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.