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Finding the Fourth Proportional to 628,070.40, 866,772.54 and 341,584.74

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Solution

The fourth proportional to 628,070.40, 866,772.54 and 341,584.74 is: 471,406.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,070.40 : 866,772.54 = 341,584.74 : x
  2. Step 2: Convert to fraction form
    628,070.40/866,772.54 = 341,584.74/x
  3. Step 3: Cross multiply
    628,070.40x = 866,772.54 × 341,584.74
  4. Step 4: Simplify right side
    628,070.40x = 296,076,272,715.04
  5. Step 5: Solve for x
    x = 296,076,272,715.04/628,070.40
  6. Step 6: Final answer
    x = 471,406.19

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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.