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Finding the Fourth Proportional to 573,760.40, 859,603.80 and 507,405.20

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Solution

The fourth proportional to 573,760.40, 859,603.80 and 507,405.20 is: 760,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,760.40 : 859,603.80 = 507,405.20 : x
  2. Step 2: Convert to fraction form
    573,760.40/859,603.80 = 507,405.20/x
  3. Step 3: Cross multiply
    573,760.40x = 859,603.80 × 507,405.20
  4. Step 4: Simplify right side
    573,760.40x = 436,167,438,059.76
  5. Step 5: Solve for x
    x = 436,167,438,059.76/573,760.40
  6. Step 6: Final answer
    x = 760,190.91

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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.