Home / 369,623.20-553,657.20-307,415.20

Finding the Fourth Proportional to 369,623.20, 553,657.20 and 307,415.20

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Solution

The fourth proportional to 369,623.20, 553,657.20 and 307,415.20 is: 460,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,623.20 : 553,657.20 = 307,415.20 : x
  2. Step 2: Convert to fraction form
    369,623.20/553,657.20 = 307,415.20/x
  3. Step 3: Cross multiply
    369,623.20x = 553,657.20 × 307,415.20
  4. Step 4: Simplify right side
    369,623.20x = 170,202,638,869.44
  5. Step 5: Solve for x
    x = 170,202,638,869.44/369,623.20
  6. Step 6: Final answer
    x = 460,476.07

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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.