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Finding the Fourth Proportional to 302,465.40, 453,006.90 and 178,049.40

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Solution

The fourth proportional to 302,465.40, 453,006.90 and 178,049.40 is: 266,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,465.40 : 453,006.90 = 178,049.40 : x
  2. Step 2: Convert to fraction form
    302,465.40/453,006.90 = 178,049.40/x
  3. Step 3: Cross multiply
    302,465.40x = 453,006.90 × 178,049.40
  4. Step 4: Simplify right side
    302,465.40x = 80,657,606,740.86
  5. Step 5: Solve for x
    x = 80,657,606,740.86/302,465.40
  6. Step 6: Final answer
    x = 266,667.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.