Home / 690,972.36-1,036,458.54-395,277

Finding the Fourth Proportional to 690,972.36, 1,036,458.54 and 395,277

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Solution

The fourth proportional to 690,972.36, 1,036,458.54 and 395,277 is: 592,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,972.36 : 1,036,458.54 = 395,277 : x
  2. Step 2: Convert to fraction form
    690,972.36/1,036,458.54 = 395,277/x
  3. Step 3: Cross multiply
    690,972.36x = 1,036,458.54 × 395,277
  4. Step 4: Simplify right side
    690,972.36x = 409,688,222,315.58
  5. Step 5: Solve for x
    x = 409,688,222,315.58/690,972.36
  6. Step 6: Final answer
    x = 592,915.50

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Double scale
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Similar ratio
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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.