Home / 1,175,030.50-1,621,551.81-638,486.50

Finding the Fourth Proportional to 1,175,030.50, 1,621,551.81 and 638,486.50

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Solution

The fourth proportional to 1,175,030.50, 1,621,551.81 and 638,486.50 is: 881,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,030.50 : 1,621,551.81 = 638,486.50 : x
  2. Step 2: Convert to fraction form
    1,175,030.50/1,621,551.81 = 638,486.50/x
  3. Step 3: Cross multiply
    1,175,030.50x = 1,621,551.81 × 638,486.50
  4. Step 4: Simplify right side
    1,175,030.50x = 1,035,338,939,735.57
  5. Step 5: Solve for x
    x = 1,035,338,939,735.57/1,175,030.50
  6. Step 6: Final answer
    x = 881,116.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.