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Finding the Fourth Proportional to 1,070,868.48, 1,477,784.72 and 611,977.80

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Solution

The fourth proportional to 1,070,868.48, 1,477,784.72 and 611,977.80 is: 844,521.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,868.48 : 1,477,784.72 = 611,977.80 : x
  2. Step 2: Convert to fraction form
    1,070,868.48/1,477,784.72 = 611,977.80/x
  3. Step 3: Cross multiply
    1,070,868.48x = 1,477,784.72 × 611,977.80
  4. Step 4: Simplify right side
    1,070,868.48x = 904,371,441,819.22
  5. Step 5: Solve for x
    x = 904,371,441,819.22/1,070,868.48
  6. Step 6: Final answer
    x = 844,521.49

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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.