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Finding the Fourth Proportional to 346,695.38, 478,430.46 and 193,734.83

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Solution

The fourth proportional to 346,695.38, 478,430.46 and 193,734.83 is: 267,348.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,695.38 : 478,430.46 = 193,734.83 : x
  2. Step 2: Convert to fraction form
    346,695.38/478,430.46 = 193,734.83/x
  3. Step 3: Cross multiply
    346,695.38x = 478,430.46 × 193,734.83
  4. Step 4: Simplify right side
    346,695.38x = 92,688,642,339.83
  5. Step 5: Solve for x
    x = 92,688,642,339.83/346,695.38
  6. Step 6: Final answer
    x = 267,348.94

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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.