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Finding the Fourth Proportional to 404,526.50, 558,246.81 and 225,678.50

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Solution

The fourth proportional to 404,526.50, 558,246.81 and 225,678.50 is: 311,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,526.50 : 558,246.81 = 225,678.50 : x
  2. Step 2: Convert to fraction form
    404,526.50/558,246.81 = 225,678.50/x
  3. Step 3: Cross multiply
    404,526.50x = 558,246.81 × 225,678.50
  4. Step 4: Simplify right side
    404,526.50x = 125,984,302,710.59
  5. Step 5: Solve for x
    x = 125,984,302,710.59/404,526.50
  6. Step 6: Final answer
    x = 311,436.46

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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.