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Finding the Fourth Proportional to 405,445.15, 608,470.67 and 152,974.63

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Solution

The fourth proportional to 405,445.15, 608,470.67 and 152,974.63 is: 229,576.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,445.15 : 608,470.67 = 152,974.63 : x
  2. Step 2: Convert to fraction form
    405,445.15/608,470.67 = 152,974.63/x
  3. Step 3: Cross multiply
    405,445.15x = 608,470.67 × 152,974.63
  4. Step 4: Simplify right side
    405,445.15x = 93,080,575,609.10
  5. Step 5: Solve for x
    x = 93,080,575,609.10/405,445.15
  6. Step 6: Final answer
    x = 229,576.25

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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.