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Finding the Fourth Proportional to 529,267.61, 730,336.62 and 299,779.22

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Solution

The fourth proportional to 529,267.61, 730,336.62 and 299,779.22 is: 413,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,267.61 : 730,336.62 = 299,779.22 : x
  2. Step 2: Convert to fraction form
    529,267.61/730,336.62 = 299,779.22/x
  3. Step 3: Cross multiply
    529,267.61x = 730,336.62 × 299,779.22
  4. Step 4: Simplify right side
    529,267.61x = 218,939,742,281.04
  5. Step 5: Solve for x
    x = 218,939,742,281.04/529,267.61
  6. Step 6: Final answer
    x = 413,665.48

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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.