Home / 563,913.70-778,503.30-435,516.72

Finding the Fourth Proportional to 563,913.70, 778,503.30 and 435,516.72

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Solution

The fourth proportional to 563,913.70, 778,503.30 and 435,516.72 is: 601,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,913.70 : 778,503.30 = 435,516.72 : x
  2. Step 2: Convert to fraction form
    563,913.70/778,503.30 = 435,516.72/x
  3. Step 3: Cross multiply
    563,913.70x = 778,503.30 × 435,516.72
  4. Step 4: Simplify right side
    563,913.70x = 339,051,203,725.18
  5. Step 5: Solve for x
    x = 339,051,203,725.18/563,913.70
  6. Step 6: Final answer
    x = 601,246.62

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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.