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Finding the Fourth Proportional to 715,807.59, 1,073,711.59 and 210,368.54

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Solution

The fourth proportional to 715,807.59, 1,073,711.59 and 210,368.54 is: 315,552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,807.59 : 1,073,711.59 = 210,368.54 : x
  2. Step 2: Convert to fraction form
    715,807.59/1,073,711.59 = 210,368.54/x
  3. Step 3: Cross multiply
    715,807.59x = 1,073,711.59 × 210,368.54
  4. Step 4: Simplify right side
    715,807.59x = 225,875,139,569.38
  5. Step 5: Solve for x
    x = 225,875,139,569.38/715,807.59
  6. Step 6: Final answer
    x = 315,552.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.