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Finding the Fourth Proportional to 1,415,509, 1,953,373.26 and 770,940.52

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Solution

The fourth proportional to 1,415,509, 1,953,373.26 and 770,940.52 is: 1,063,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,509 : 1,953,373.26 = 770,940.52 : x
  2. Step 2: Convert to fraction form
    1,415,509/1,953,373.26 = 770,940.52/x
  3. Step 3: Cross multiply
    1,415,509x = 1,953,373.26 × 770,940.52
  4. Step 4: Simplify right side
    1,415,509x = 1,505,934,596,818.50
  5. Step 5: Solve for x
    x = 1,505,934,596,818.50/1,415,509
  6. Step 6: Final answer
    x = 1,063,882.04

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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.