Home / 816,543.90-1,225,064.97-417,464.93

Finding the Fourth Proportional to 816,543.90, 1,225,064.97 and 417,464.93

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Solution

The fourth proportional to 816,543.90, 1,225,064.97 and 417,464.93 is: 626,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,543.90 : 1,225,064.97 = 417,464.93 : x
  2. Step 2: Convert to fraction form
    816,543.90/1,225,064.97 = 417,464.93/x
  3. Step 3: Cross multiply
    816,543.90x = 1,225,064.97 × 417,464.93
  4. Step 4: Simplify right side
    816,543.90x = 511,421,665,009.17
  5. Step 5: Solve for x
    x = 511,421,665,009.17/816,543.90
  6. Step 6: Final answer
    x = 626,324.76

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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.