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Finding the Fourth Proportional to 553,701.20, 777,281.20 and 553,701.20

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Solution

The fourth proportional to 553,701.20, 777,281.20 and 553,701.20 is: 777,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,701.20 : 777,281.20 = 553,701.20 : x
  2. Step 2: Convert to fraction form
    553,701.20/777,281.20 = 553,701.20/x
  3. Step 3: Cross multiply
    553,701.20x = 777,281.20 × 553,701.20
  4. Step 4: Simplify right side
    553,701.20x = 430,381,533,177.44
  5. Step 5: Solve for x
    x = 430,381,533,177.44/553,701.20
  6. Step 6: Final answer
    x = 777,281.20

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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.