Home / 1,385,920.94-2,078,955.92-439,365.47

Finding the Fourth Proportional to 1,385,920.94, 2,078,955.92 and 439,365.47

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Solution

The fourth proportional to 1,385,920.94, 2,078,955.92 and 439,365.47 is: 659,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,920.94 : 2,078,955.92 = 439,365.47 : x
  2. Step 2: Convert to fraction form
    1,385,920.94/2,078,955.92 = 439,365.47/x
  3. Step 3: Cross multiply
    1,385,920.94x = 2,078,955.92 × 439,365.47
  4. Step 4: Simplify right side
    1,385,920.94x = 913,421,435,603.72
  5. Step 5: Solve for x
    x = 913,421,435,603.72/1,385,920.94
  6. Step 6: Final answer
    x = 659,071.82

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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.