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Finding the Fourth Proportional to 3,314,703.75, 4,972,041.45 and 918,541.50

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Solution

The fourth proportional to 3,314,703.75, 4,972,041.45 and 918,541.50 is: 1,377,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314,703.75 : 4,972,041.45 = 918,541.50 : x
  2. Step 2: Convert to fraction form
    3,314,703.75/4,972,041.45 = 918,541.50/x
  3. Step 3: Cross multiply
    3,314,703.75x = 4,972,041.45 × 918,541.50
  4. Step 4: Simplify right side
    3,314,703.75x = 4,567,026,411,545.18
  5. Step 5: Solve for x
    x = 4,567,026,411,545.18/3,314,703.75
  6. Step 6: Final answer
    x = 1,377,808.32

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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.