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Finding the Fourth Proportional to 1,888,427.16, 2,833,478 and 989,655.16

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Solution

The fourth proportional to 1,888,427.16, 2,833,478 and 989,655.16 is: 1,484,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,427.16 : 2,833,478 = 989,655.16 : x
  2. Step 2: Convert to fraction form
    1,888,427.16/2,833,478 = 989,655.16/x
  3. Step 3: Cross multiply
    1,888,427.16x = 2,833,478 × 989,655.16
  4. Step 4: Simplify right side
    1,888,427.16x = 2,804,166,123,446.48
  5. Step 5: Solve for x
    x = 2,804,166,123,446.48/1,888,427.16
  6. Step 6: Final answer
    x = 1,484,921.52

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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.