Home / 685,623.16-1,028,828.55-535,441.87

Finding the Fourth Proportional to 685,623.16, 1,028,828.55 and 535,441.87

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Solution

The fourth proportional to 685,623.16, 1,028,828.55 and 535,441.87 is: 803,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,623.16 : 1,028,828.55 = 535,441.87 : x
  2. Step 2: Convert to fraction form
    685,623.16/1,028,828.55 = 535,441.87/x
  3. Step 3: Cross multiply
    685,623.16x = 1,028,828.55 × 535,441.87
  4. Step 4: Simplify right side
    685,623.16x = 550,877,882,721.39
  5. Step 5: Solve for x
    x = 550,877,882,721.39/685,623.16
  6. Step 6: Final answer
    x = 803,470.35

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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.