Home / 1,257,420.01-1,886,130.66-415,971.76

Finding the Fourth Proportional to 1,257,420.01, 1,886,130.66 and 415,971.76

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Solution

The fourth proportional to 1,257,420.01, 1,886,130.66 and 415,971.76 is: 623,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,420.01 : 1,886,130.66 = 415,971.76 : x
  2. Step 2: Convert to fraction form
    1,257,420.01/1,886,130.66 = 415,971.76/x
  3. Step 3: Cross multiply
    1,257,420.01x = 1,886,130.66 × 415,971.76
  4. Step 4: Simplify right side
    1,257,420.01x = 784,577,090,230.16
  5. Step 5: Solve for x
    x = 784,577,090,230.16/1,257,420.01
  6. Step 6: Final answer
    x = 623,957.85

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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.