Home / 1,018,688.40-1,528,032.60-841,395.60

Finding the Fourth Proportional to 1,018,688.40, 1,528,032.60 and 841,395.60

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Solution

The fourth proportional to 1,018,688.40, 1,528,032.60 and 841,395.60 is: 1,262,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,688.40 : 1,528,032.60 = 841,395.60 : x
  2. Step 2: Convert to fraction form
    1,018,688.40/1,528,032.60 = 841,395.60/x
  3. Step 3: Cross multiply
    1,018,688.40x = 1,528,032.60 × 841,395.60
  4. Step 4: Simplify right side
    1,018,688.40x = 1,285,679,906,296.56
  5. Step 5: Solve for x
    x = 1,285,679,906,296.56/1,018,688.40
  6. Step 6: Final answer
    x = 1,262,093.40

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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.