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Finding the Fourth Proportional to 573,766.40, 859,612.80 and 507,411.20

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Solution

The fourth proportional to 573,766.40, 859,612.80 and 507,411.20 is: 760,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,766.40 : 859,612.80 = 507,411.20 : x
  2. Step 2: Convert to fraction form
    573,766.40/859,612.80 = 507,411.20/x
  3. Step 3: Cross multiply
    573,766.40x = 859,612.80 × 507,411.20
  4. Step 4: Simplify right side
    573,766.40x = 436,177,162,383.36
  5. Step 5: Solve for x
    x = 436,177,162,383.36/573,766.40
  6. Step 6: Final answer
    x = 760,199.90

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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.