Home / 1,256,705.60-1,885,058.40-657,435.20

Finding the Fourth Proportional to 1,256,705.60, 1,885,058.40 and 657,435.20

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Solution

The fourth proportional to 1,256,705.60, 1,885,058.40 and 657,435.20 is: 986,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,705.60 : 1,885,058.40 = 657,435.20 : x
  2. Step 2: Convert to fraction form
    1,256,705.60/1,885,058.40 = 657,435.20/x
  3. Step 3: Cross multiply
    1,256,705.60x = 1,885,058.40 × 657,435.20
  4. Step 4: Simplify right side
    1,256,705.60x = 1,239,303,746,215.68
  5. Step 5: Solve for x
    x = 1,239,303,746,215.68/1,256,705.60
  6. Step 6: Final answer
    x = 986,152.80

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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.