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Finding the Fourth Proportional to 908,894.40, 1,362,466.80 and 706,378.20

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Solution

The fourth proportional to 908,894.40, 1,362,466.80 and 706,378.20 is: 1,058,887.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,894.40 : 1,362,466.80 = 706,378.20 : x
  2. Step 2: Convert to fraction form
    908,894.40/1,362,466.80 = 706,378.20/x
  3. Step 3: Cross multiply
    908,894.40x = 1,362,466.80 × 706,378.20
  4. Step 4: Simplify right side
    908,894.40x = 962,416,845,743.76
  5. Step 5: Solve for x
    x = 962,416,845,743.76/908,894.40
  6. Step 6: Final answer
    x = 1,058,887.42

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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.