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Finding the Fourth Proportional to 838,674.36, 1,157,340.06 and 456,692.76

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Solution

The fourth proportional to 838,674.36, 1,157,340.06 and 456,692.76 is: 630,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,674.36 : 1,157,340.06 = 456,692.76 : x
  2. Step 2: Convert to fraction form
    838,674.36/1,157,340.06 = 456,692.76/x
  3. Step 3: Cross multiply
    838,674.36x = 1,157,340.06 × 456,692.76
  4. Step 4: Simplify right side
    838,674.36x = 528,548,826,259.97
  5. Step 5: Solve for x
    x = 528,548,826,259.97/838,674.36
  6. Step 6: Final answer
    x = 630,219.37

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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.