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Finding the Fourth Proportional to 917,598.34, 1,375,639.66 and 404,898.41

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Solution

The fourth proportional to 917,598.34, 1,375,639.66 and 404,898.41 is: 607,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,598.34 : 1,375,639.66 = 404,898.41 : x
  2. Step 2: Convert to fraction form
    917,598.34/1,375,639.66 = 404,898.41/x
  3. Step 3: Cross multiply
    917,598.34x = 1,375,639.66 × 404,898.41
  4. Step 4: Simplify right side
    917,598.34x = 556,994,312,734.61
  5. Step 5: Solve for x
    x = 556,994,312,734.61/917,598.34
  6. Step 6: Final answer
    x = 607,013.21

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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.