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Finding the Fourth Proportional to 318,038.04, 438,900.86 and 174,801.89

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Solution

The fourth proportional to 318,038.04, 438,900.86 and 174,801.89 is: 241,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,038.04 : 438,900.86 = 174,801.89 : x
  2. Step 2: Convert to fraction form
    318,038.04/438,900.86 = 174,801.89/x
  3. Step 3: Cross multiply
    318,038.04x = 438,900.86 × 174,801.89
  4. Step 4: Simplify right side
    318,038.04x = 76,720,700,073.87
  5. Step 5: Solve for x
    x = 76,720,700,073.87/318,038.04
  6. Step 6: Final answer
    x = 241,231.21

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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.