Home / 891,920.40-1,336,066.20-553,923.60

Finding the Fourth Proportional to 891,920.40, 1,336,066.20 and 553,923.60

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Solution

The fourth proportional to 891,920.40, 1,336,066.20 and 553,923.60 is: 829,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,920.40 : 1,336,066.20 = 553,923.60 : x
  2. Step 2: Convert to fraction form
    891,920.40/1,336,066.20 = 553,923.60/x
  3. Step 3: Cross multiply
    891,920.40x = 1,336,066.20 × 553,923.60
  4. Step 4: Simplify right side
    891,920.40x = 740,078,599,342.32
  5. Step 5: Solve for x
    x = 740,078,599,342.32/891,920.40
  6. Step 6: Final answer
    x = 829,758.57

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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.