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Finding the Fourth Proportional to 346,535.94, 478,168.70 and 193,555.28

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Solution

The fourth proportional to 346,535.94, 478,168.70 and 193,555.28 is: 267,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,535.94 : 478,168.70 = 193,555.28 : x
  2. Step 2: Convert to fraction form
    346,535.94/478,168.70 = 193,555.28/x
  3. Step 3: Cross multiply
    346,535.94x = 478,168.70 × 193,555.28
  4. Step 4: Simplify right side
    346,535.94x = 92,552,076,615.74
  5. Step 5: Solve for x
    x = 92,552,076,615.74/346,535.94
  6. Step 6: Final answer
    x = 267,077.86

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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.