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Finding the Fourth Proportional to 386,125.44, 576,547.08 and 345,884.64

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Solution

The fourth proportional to 386,125.44, 576,547.08 and 345,884.64 is: 516,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,125.44 : 576,547.08 = 345,884.64 : x
  2. Step 2: Convert to fraction form
    386,125.44/576,547.08 = 345,884.64/x
  3. Step 3: Cross multiply
    386,125.44x = 576,547.08 × 345,884.64
  4. Step 4: Simplify right side
    386,125.44x = 199,418,779,208.85
  5. Step 5: Solve for x
    x = 199,418,779,208.85/386,125.44
  6. Step 6: Final answer
    x = 516,461.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.