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Finding the Fourth Proportional to 434,570.60, 651,855.90 and 382,039.40

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Solution

The fourth proportional to 434,570.60, 651,855.90 and 382,039.40 is: 573,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,570.60 : 651,855.90 = 382,039.40 : x
  2. Step 2: Convert to fraction form
    434,570.60/651,855.90 = 382,039.40/x
  3. Step 3: Cross multiply
    434,570.60x = 651,855.90 × 382,039.40
  4. Step 4: Simplify right side
    434,570.60x = 249,034,636,922.46
  5. Step 5: Solve for x
    x = 249,034,636,922.46/434,570.60
  6. Step 6: Final answer
    x = 573,059.10

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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.