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Finding the Fourth Proportional to 346,340.90, 477,945.88 and 193,381.70

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Solution

The fourth proportional to 346,340.90, 477,945.88 and 193,381.70 is: 266,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,340.90 : 477,945.88 = 193,381.70 : x
  2. Step 2: Convert to fraction form
    346,340.90/477,945.88 = 193,381.70/x
  3. Step 3: Cross multiply
    346,340.90x = 477,945.88 × 193,381.70
  4. Step 4: Simplify right side
    346,340.90x = 92,425,983,909.21
  5. Step 5: Solve for x
    x = 92,425,983,909.21/346,340.90
  6. Step 6: Final answer
    x = 266,864.19

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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.