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Finding the Fourth Proportional to 654,348.40, 902,995.36 and 367,869.76

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Solution

The fourth proportional to 654,348.40, 902,995.36 and 367,869.76 is: 507,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,348.40 : 902,995.36 = 367,869.76 : x
  2. Step 2: Convert to fraction form
    654,348.40/902,995.36 = 367,869.76/x
  3. Step 3: Cross multiply
    654,348.40x = 902,995.36 × 367,869.76
  4. Step 4: Simplify right side
    654,348.40x = 332,184,686,364.31
  5. Step 5: Solve for x
    x = 332,184,686,364.31/654,348.40
  6. Step 6: Final answer
    x = 507,657.21

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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.