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Finding the Fourth Proportional to 307,543.01, 424,409.54 and 171,576.95

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Solution

The fourth proportional to 307,543.01, 424,409.54 and 171,576.95 is: 236,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,543.01 : 424,409.54 = 171,576.95 : x
  2. Step 2: Convert to fraction form
    307,543.01/424,409.54 = 171,576.95/x
  3. Step 3: Cross multiply
    307,543.01x = 424,409.54 × 171,576.95
  4. Step 4: Simplify right side
    307,543.01x = 72,818,891,444.17
  5. Step 5: Solve for x
    x = 72,818,891,444.17/307,543.01
  6. Step 6: Final answer
    x = 236,776.29

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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.