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Finding the Fourth Proportional to 553,696.70, 777,274.90 and 553,696.70

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Solution

The fourth proportional to 553,696.70, 777,274.90 and 553,696.70 is: 777,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,696.70 : 777,274.90 = 553,696.70 : x
  2. Step 2: Convert to fraction form
    553,696.70/777,274.90 = 553,696.70/x
  3. Step 3: Cross multiply
    553,696.70x = 777,274.90 × 553,696.70
  4. Step 4: Simplify right side
    553,696.70x = 430,374,547,122.83
  5. Step 5: Solve for x
    x = 430,374,547,122.83/553,696.70
  6. Step 6: Final answer
    x = 777,274.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.