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Finding the Fourth Proportional to 385,775.01, 532,350.99 and 213,681.35

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Solution

The fourth proportional to 385,775.01, 532,350.99 and 213,681.35 is: 294,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,775.01 : 532,350.99 = 213,681.35 : x
  2. Step 2: Convert to fraction form
    385,775.01/532,350.99 = 213,681.35/x
  3. Step 3: Cross multiply
    385,775.01x = 532,350.99 × 213,681.35
  4. Step 4: Simplify right side
    385,775.01x = 113,753,479,547.91
  5. Step 5: Solve for x
    x = 113,753,479,547.91/385,775.01
  6. Step 6: Final answer
    x = 294,870.01

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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.