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Finding the Fourth Proportional to 908,851.60, 1,363,264.60 and 410,214.80

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Solution

The fourth proportional to 908,851.60, 1,363,264.60 and 410,214.80 is: 615,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,851.60 : 1,363,264.60 = 410,214.80 : x
  2. Step 2: Convert to fraction form
    908,851.60/1,363,264.60 = 410,214.80/x
  3. Step 3: Cross multiply
    908,851.60x = 1,363,264.60 × 410,214.80
  4. Step 4: Simplify right side
    908,851.60x = 559,231,315,236.08
  5. Step 5: Solve for x
    x = 559,231,315,236.08/908,851.60
  6. Step 6: Final answer
    x = 615,316.42

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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.