Home / 409,985.34-614,918.55-157,329.43

Finding the Fourth Proportional to 409,985.34, 614,918.55 and 157,329.43

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Solution

The fourth proportional to 409,985.34, 614,918.55 and 157,329.43 is: 235,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,985.34 : 614,918.55 = 157,329.43 : x
  2. Step 2: Convert to fraction form
    409,985.34/614,918.55 = 157,329.43/x
  3. Step 3: Cross multiply
    409,985.34x = 614,918.55 × 157,329.43
  4. Step 4: Simplify right side
    409,985.34x = 96,744,783,430.63
  5. Step 5: Solve for x
    x = 96,744,783,430.63/409,985.34
  6. Step 6: Final answer
    x = 235,971.32

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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.