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Finding the Fourth Proportional to 637,298.04, 879,491.10 and 346,928.94

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Solution

The fourth proportional to 637,298.04, 879,491.10 and 346,928.94 is: 478,772.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,298.04 : 879,491.10 = 346,928.94 : x
  2. Step 2: Convert to fraction form
    637,298.04/879,491.10 = 346,928.94/x
  3. Step 3: Cross multiply
    637,298.04x = 879,491.10 × 346,928.94
  4. Step 4: Simplify right side
    637,298.04x = 305,120,915,062.43
  5. Step 5: Solve for x
    x = 305,120,915,062.43/637,298.04
  6. Step 6: Final answer
    x = 478,772.72

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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.