Home / 1,393,068.77-2,089,603.59-919,643.41

Finding the Fourth Proportional to 1,393,068.77, 2,089,603.59 and 919,643.41

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Solution

The fourth proportional to 1,393,068.77, 2,089,603.59 and 919,643.41 is: 1,379,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,068.77 : 2,089,603.59 = 919,643.41 : x
  2. Step 2: Convert to fraction form
    1,393,068.77/2,089,603.59 = 919,643.41/x
  3. Step 3: Cross multiply
    1,393,068.77x = 2,089,603.59 × 919,643.41
  4. Step 4: Simplify right side
    1,393,068.77x = 1,921,690,156,009.61
  5. Step 5: Solve for x
    x = 1,921,690,156,009.61/1,393,068.77
  6. Step 6: Final answer
    x = 1,379,465.40

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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.