Home / 1,184,638.90-1,634,801.86-640,774.45

Finding the Fourth Proportional to 1,184,638.90, 1,634,801.86 and 640,774.45

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Solution

The fourth proportional to 1,184,638.90, 1,634,801.86 and 640,774.45 is: 884,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,638.90 : 1,634,801.86 = 640,774.45 : x
  2. Step 2: Convert to fraction form
    1,184,638.90/1,634,801.86 = 640,774.45/x
  3. Step 3: Cross multiply
    1,184,638.90x = 1,634,801.86 × 640,774.45
  4. Step 4: Simplify right side
    1,184,638.90x = 1,047,539,258,151.37
  5. Step 5: Solve for x
    x = 1,047,539,258,151.37/1,184,638.90
  6. Step 6: Final answer
    x = 884,268.84

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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.