Home / 1,688,805.51-2,532,828.30-777,113.45

Finding the Fourth Proportional to 1,688,805.51, 2,532,828.30 and 777,113.45

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Solution

The fourth proportional to 1,688,805.51, 2,532,828.30 and 777,113.45 is: 1,165,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,805.51 : 2,532,828.30 = 777,113.45 : x
  2. Step 2: Convert to fraction form
    1,688,805.51/2,532,828.30 = 777,113.45/x
  3. Step 3: Cross multiply
    1,688,805.51x = 2,532,828.30 × 777,113.45
  4. Step 4: Simplify right side
    1,688,805.51x = 1,968,294,938,470.63
  5. Step 5: Solve for x
    x = 1,968,294,938,470.63/1,688,805.51
  6. Step 6: Final answer
    x = 1,165,495.33

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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.