Home / 1,171,802.53-1,617,072.93-688,411.74

Finding the Fourth Proportional to 1,171,802.53, 1,617,072.93 and 688,411.74

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Solution

The fourth proportional to 1,171,802.53, 1,617,072.93 and 688,411.74 is: 949,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,802.53 : 1,617,072.93 = 688,411.74 : x
  2. Step 2: Convert to fraction form
    1,171,802.53/1,617,072.93 = 688,411.74/x
  3. Step 3: Cross multiply
    1,171,802.53x = 1,617,072.93 × 688,411.74
  4. Step 4: Simplify right side
    1,171,802.53x = 1,113,211,989,448.20
  5. Step 5: Solve for x
    x = 1,113,211,989,448.20/1,171,802.53
  6. Step 6: Final answer
    x = 949,999.65

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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.