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Finding the Fourth Proportional to 554,256.30, 830,400.30 and 518,826.90

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Solution

The fourth proportional to 554,256.30, 830,400.30 and 518,826.90 is: 777,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,256.30 : 830,400.30 = 518,826.90 : x
  2. Step 2: Convert to fraction form
    554,256.30/830,400.30 = 518,826.90/x
  3. Step 3: Cross multiply
    554,256.30x = 830,400.30 × 518,826.90
  4. Step 4: Simplify right side
    554,256.30x = 430,834,013,408.07
  5. Step 5: Solve for x
    x = 430,834,013,408.07/554,256.30
  6. Step 6: Final answer
    x = 777,319.11

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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.