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Finding the Fourth Proportional to 1,702,962.51, 2,349,968.19 and 938,999.67

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Solution

The fourth proportional to 1,702,962.51, 2,349,968.19 and 938,999.67 is: 1,295,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702,962.51 : 2,349,968.19 = 938,999.67 : x
  2. Step 2: Convert to fraction form
    1,702,962.51/2,349,968.19 = 938,999.67/x
  3. Step 3: Cross multiply
    1,702,962.51x = 2,349,968.19 × 938,999.67
  4. Step 4: Simplify right side
    1,702,962.51x = 2,206,619,354,920.50
  5. Step 5: Solve for x
    x = 2,206,619,354,920.50/1,702,962.51
  6. Step 6: Final answer
    x = 1,295,753.34

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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.