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Finding the Fourth Proportional to 346,869.76, 478,676.32 and 195,963.52

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Solution

The fourth proportional to 346,869.76, 478,676.32 and 195,963.52 is: 270,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,869.76 : 478,676.32 = 195,963.52 : x
  2. Step 2: Convert to fraction form
    346,869.76/478,676.32 = 195,963.52/x
  3. Step 3: Cross multiply
    346,869.76x = 478,676.32 × 195,963.52
  4. Step 4: Simplify right side
    346,869.76x = 93,803,096,607.85
  5. Step 5: Solve for x
    x = 93,803,096,607.85/346,869.76
  6. Step 6: Final answer
    x = 270,427.43

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1.5x scale

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.