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Finding the Fourth Proportional to 307,363.26, 424,191.54 and 186,495.06

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Solution

The fourth proportional to 307,363.26, 424,191.54 and 186,495.06 is: 257,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,363.26 : 424,191.54 = 186,495.06 : x
  2. Step 2: Convert to fraction form
    307,363.26/424,191.54 = 186,495.06/x
  3. Step 3: Cross multiply
    307,363.26x = 424,191.54 × 186,495.06
  4. Step 4: Simplify right side
    307,363.26x = 79,109,626,703.79
  5. Step 5: Solve for x
    x = 79,109,626,703.79/307,363.26
  6. Step 6: Final answer
    x = 257,381.53

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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.