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Finding the Fourth Proportional to 307,561.59, 424,354.95 and 180,168.84

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Solution

The fourth proportional to 307,561.59, 424,354.95 and 180,168.84 is: 248,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,561.59 : 424,354.95 = 180,168.84 : x
  2. Step 2: Convert to fraction form
    307,561.59/424,354.95 = 180,168.84/x
  3. Step 3: Cross multiply
    307,561.59x = 424,354.95 × 180,168.84
  4. Step 4: Simplify right side
    307,561.59x = 76,455,539,089.76
  5. Step 5: Solve for x
    x = 76,455,539,089.76/307,561.59
  6. Step 6: Final answer
    x = 248,586.11

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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.