Home / 405,827.07-608,823.63-139,553.00

Finding the Fourth Proportional to 405,827.07, 608,823.63 and 139,553.00

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Solution

The fourth proportional to 405,827.07, 608,823.63 and 139,553.00 is: 209,358.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,827.07 : 608,823.63 = 139,553.00 : x
  2. Step 2: Convert to fraction form
    405,827.07/608,823.63 = 139,553.00/x
  3. Step 3: Cross multiply
    405,827.07x = 608,823.63 × 139,553.00
  4. Step 4: Simplify right side
    405,827.07x = 84,963,165,559.45
  5. Step 5: Solve for x
    x = 84,963,165,559.45/405,827.07
  6. Step 6: Final answer
    x = 209,358.05

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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.