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Finding the Fourth Proportional to 571,152.40, 856,469.40 and 216,048.40

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Solution

The fourth proportional to 571,152.40, 856,469.40 and 216,048.40 is: 323,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,152.40 : 856,469.40 = 216,048.40 : x
  2. Step 2: Convert to fraction form
    571,152.40/856,469.40 = 216,048.40/x
  3. Step 3: Cross multiply
    571,152.40x = 856,469.40 × 216,048.40
  4. Step 4: Simplify right side
    571,152.40x = 185,038,843,518.96
  5. Step 5: Solve for x
    x = 185,038,843,518.96/571,152.40
  6. Step 6: Final answer
    x = 323,974.55

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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.