Home / 690,915.06-953,464.71-400,582.92

Finding the Fourth Proportional to 690,915.06, 953,464.71 and 400,582.92

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Solution

The fourth proportional to 690,915.06, 953,464.71 and 400,582.92 is: 552,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,915.06 : 953,464.71 = 400,582.92 : x
  2. Step 2: Convert to fraction form
    690,915.06/953,464.71 = 400,582.92/x
  3. Step 3: Cross multiply
    690,915.06x = 953,464.71 × 400,582.92
  4. Step 4: Simplify right side
    690,915.06x = 381,941,677,648.75
  5. Step 5: Solve for x
    x = 381,941,677,648.75/690,915.06
  6. Step 6: Final answer
    x = 552,805.55

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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.