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Finding the Fourth Proportional to 632,903.46, 873,407.88 and 346,441.74

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Solution

The fourth proportional to 632,903.46, 873,407.88 and 346,441.74 is: 478,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,903.46 : 873,407.88 = 346,441.74 : x
  2. Step 2: Convert to fraction form
    632,903.46/873,407.88 = 346,441.74/x
  3. Step 3: Cross multiply
    632,903.46x = 873,407.88 × 346,441.74
  4. Step 4: Simplify right side
    632,903.46x = 302,584,945,676.91
  5. Step 5: Solve for x
    x = 302,584,945,676.91/632,903.46
  6. Step 6: Final answer
    x = 478,090.21

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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.