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Finding the Fourth Proportional to 549,676.08, 758,539.80 and 307,966.32

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Solution

The fourth proportional to 549,676.08, 758,539.80 and 307,966.32 is: 424,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,676.08 : 758,539.80 = 307,966.32 : x
  2. Step 2: Convert to fraction form
    549,676.08/758,539.80 = 307,966.32/x
  3. Step 3: Cross multiply
    549,676.08x = 758,539.80 × 307,966.32
  4. Step 4: Simplify right side
    549,676.08x = 233,604,710,779.54
  5. Step 5: Solve for x
    x = 233,604,710,779.54/549,676.08
  6. Step 6: Final answer
    x = 424,986.13

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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.