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Finding the Fourth Proportional to 410,391.55, 616,521.47 and 296,889.45

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Solution

The fourth proportional to 410,391.55, 616,521.47 and 296,889.45 is: 446,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,391.55 : 616,521.47 = 296,889.45 : x
  2. Step 2: Convert to fraction form
    410,391.55/616,521.47 = 296,889.45/x
  3. Step 3: Cross multiply
    410,391.55x = 616,521.47 × 296,889.45
  4. Step 4: Simplify right side
    410,391.55x = 183,038,718,015.09
  5. Step 5: Solve for x
    x = 183,038,718,015.09/410,391.55
  6. Step 6: Final answer
    x = 446,009.96

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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.