Home / 640,582.38-884,008.98-354,107.25

Finding the Fourth Proportional to 640,582.38, 884,008.98 and 354,107.25

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Solution

The fourth proportional to 640,582.38, 884,008.98 and 354,107.25 is: 488,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,582.38 : 884,008.98 = 354,107.25 : x
  2. Step 2: Convert to fraction form
    640,582.38/884,008.98 = 354,107.25/x
  3. Step 3: Cross multiply
    640,582.38x = 884,008.98 × 354,107.25
  4. Step 4: Simplify right side
    640,582.38x = 313,033,988,883.11
  5. Step 5: Solve for x
    x = 313,033,988,883.11/640,582.38
  6. Step 6: Final answer
    x = 488,670.93

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1.5x scale

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.