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Finding the Fourth Proportional to 434,573.70, 651,860.55 and 410,079.30

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Solution

The fourth proportional to 434,573.70, 651,860.55 and 410,079.30 is: 615,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,573.70 : 651,860.55 = 410,079.30 : x
  2. Step 2: Convert to fraction form
    434,573.70/651,860.55 = 410,079.30/x
  3. Step 3: Cross multiply
    434,573.70x = 651,860.55 × 410,079.30
  4. Step 4: Simplify right side
    434,573.70x = 267,314,518,041.62
  5. Step 5: Solve for x
    x = 267,314,518,041.62/434,573.70
  6. Step 6: Final answer
    x = 615,118.95

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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.