Home / 838,305.16-1,157,899.80-608,495.20

Finding the Fourth Proportional to 838,305.16, 1,157,899.80 and 608,495.20

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Solution

The fourth proportional to 838,305.16, 1,157,899.80 and 608,495.20 is: 840,477.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,305.16 : 1,157,899.80 = 608,495.20 : x
  2. Step 2: Convert to fraction form
    838,305.16/1,157,899.80 = 608,495.20/x
  3. Step 3: Cross multiply
    838,305.16x = 1,157,899.80 × 608,495.20
  4. Step 4: Simplify right side
    838,305.16x = 704,576,470,380.96
  5. Step 5: Solve for x
    x = 704,576,470,380.96/838,305.16
  6. Step 6: Final answer
    x = 840,477.32

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Double scale
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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.