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Finding the Fourth Proportional to 434,574.60, 651,861.90 and 382,043.40

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Solution

The fourth proportional to 434,574.60, 651,861.90 and 382,043.40 is: 573,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,574.60 : 651,861.90 = 382,043.40 : x
  2. Step 2: Convert to fraction form
    434,574.60/651,861.90 = 382,043.40/x
  3. Step 3: Cross multiply
    434,574.60x = 651,861.90 × 382,043.40
  4. Step 4: Simplify right side
    434,574.60x = 249,039,536,606.46
  5. Step 5: Solve for x
    x = 249,039,536,606.46/434,574.60
  6. Step 6: Final answer
    x = 573,065.10

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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.