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Finding the Fourth Proportional to 578,312.10, 798,070.59 and 323,663.30

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Solution

The fourth proportional to 578,312.10, 798,070.59 and 323,663.30 is: 446,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,312.10 : 798,070.59 = 323,663.30 : x
  2. Step 2: Convert to fraction form
    578,312.10/798,070.59 = 323,663.30/x
  3. Step 3: Cross multiply
    578,312.10x = 798,070.59 × 323,663.30
  4. Step 4: Simplify right side
    578,312.10x = 258,306,156,801.99
  5. Step 5: Solve for x
    x = 258,306,156,801.99/578,312.10
  6. Step 6: Final answer
    x = 446,655.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.