Home / 2,927,907.68-4,039,591.56-1,638,543.20

Finding the Fourth Proportional to 2,927,907.68, 4,039,591.56 and 1,638,543.20

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Solution

The fourth proportional to 2,927,907.68, 4,039,591.56 and 1,638,543.20 is: 2,260,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,907.68 : 4,039,591.56 = 1,638,543.20 : x
  2. Step 2: Convert to fraction form
    2,927,907.68/4,039,591.56 = 1,638,543.20/x
  3. Step 3: Cross multiply
    2,927,907.68x = 4,039,591.56 × 1,638,543.20
  4. Step 4: Simplify right side
    2,927,907.68x = 6,619,045,281,415.39
  5. Step 5: Solve for x
    x = 6,619,045,281,415.39/2,927,907.68
  6. Step 6: Final answer
    x = 2,260,674.18

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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.