Home / 938,361.34-1,406,699.16-458,317.54

Finding the Fourth Proportional to 938,361.34, 1,406,699.16 and 458,317.54

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Solution

The fourth proportional to 938,361.34, 1,406,699.16 and 458,317.54 is: 687,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,361.34 : 1,406,699.16 = 458,317.54 : x
  2. Step 2: Convert to fraction form
    938,361.34/1,406,699.16 = 458,317.54/x
  3. Step 3: Cross multiply
    938,361.34x = 1,406,699.16 × 458,317.54
  4. Step 4: Simplify right side
    938,361.34x = 644,714,898,531.27
  5. Step 5: Solve for x
    x = 644,714,898,531.27/938,361.34
  6. Step 6: Final answer
    x = 687,064.64

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1.5x scale

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.