Home / 1,871,838.90-2,808,068.76-657,100.53

Finding the Fourth Proportional to 1,871,838.90, 2,808,068.76 and 657,100.53

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Solution

The fourth proportional to 1,871,838.90, 2,808,068.76 and 657,100.53 is: 985,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,838.90 : 2,808,068.76 = 657,100.53 : x
  2. Step 2: Convert to fraction form
    1,871,838.90/2,808,068.76 = 657,100.53/x
  3. Step 3: Cross multiply
    1,871,838.90x = 2,808,068.76 × 657,100.53
  4. Step 4: Simplify right side
    1,871,838.90x = 1,845,183,470,472.44
  5. Step 5: Solve for x
    x = 1,845,183,470,472.44/1,871,838.90
  6. Step 6: Final answer
    x = 985,759.76

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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.