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Finding the Fourth Proportional to 425,848.98, 637,444.83 and 313,655.88

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Solution

The fourth proportional to 425,848.98, 637,444.83 and 313,655.88 is: 469,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,848.98 : 637,444.83 = 313,655.88 : x
  2. Step 2: Convert to fraction form
    425,848.98/637,444.83 = 313,655.88/x
  3. Step 3: Cross multiply
    425,848.98x = 637,444.83 × 313,655.88
  4. Step 4: Simplify right side
    425,848.98x = 199,938,319,105.10
  5. Step 5: Solve for x
    x = 199,938,319,105.10/425,848.98
  6. Step 6: Final answer
    x = 469,505.22

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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.