Home / 1,113,503.04-1,670,253.75-639,886.32

Finding the Fourth Proportional to 1,113,503.04, 1,670,253.75 and 639,886.32

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Solution

The fourth proportional to 1,113,503.04, 1,670,253.75 and 639,886.32 is: 959,829.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,503.04 : 1,670,253.75 = 639,886.32 : x
  2. Step 2: Convert to fraction form
    1,113,503.04/1,670,253.75 = 639,886.32/x
  3. Step 3: Cross multiply
    1,113,503.04x = 1,670,253.75 × 639,886.32
  4. Step 4: Simplify right side
    1,113,503.04x = 1,068,772,525,553.70
  5. Step 5: Solve for x
    x = 1,068,772,525,553.70/1,113,503.04
  6. Step 6: Final answer
    x = 959,829.01

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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.