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Finding the Fourth Proportional to 318,038.01, 438,873.87 and 174,798.18

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Solution

The fourth proportional to 318,038.01, 438,873.87 and 174,798.18 is: 241,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,038.01 : 438,873.87 = 174,798.18 : x
  2. Step 2: Convert to fraction form
    318,038.01/438,873.87 = 174,798.18/x
  3. Step 3: Cross multiply
    318,038.01x = 438,873.87 × 174,798.18
  4. Step 4: Simplify right side
    318,038.01x = 76,714,353,725.56
  5. Step 5: Solve for x
    x = 76,714,353,725.56/318,038.01
  6. Step 6: Final answer
    x = 241,211.27

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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.