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Finding the Fourth Proportional to 302,324.59, 453,554.32 and 91,978.93

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Solution

The fourth proportional to 302,324.59, 453,554.32 and 91,978.93 is: 137,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,324.59 : 453,554.32 = 91,978.93 : x
  2. Step 2: Convert to fraction form
    302,324.59/453,554.32 = 91,978.93/x
  3. Step 3: Cross multiply
    302,324.59x = 453,554.32 × 91,978.93
  4. Step 4: Simplify right side
    302,324.59x = 41,717,441,050.48
  5. Step 5: Solve for x
    x = 41,717,441,050.48/302,324.59
  6. Step 6: Final answer
    x = 137,988.91

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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.