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Finding the Fourth Proportional to 719,978.40, 1,078,412.40 and 595,562.40

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Solution

The fourth proportional to 719,978.40, 1,078,412.40 and 595,562.40 is: 892,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,978.40 : 1,078,412.40 = 595,562.40 : x
  2. Step 2: Convert to fraction form
    719,978.40/1,078,412.40 = 595,562.40/x
  3. Step 3: Cross multiply
    719,978.40x = 1,078,412.40 × 595,562.40
  4. Step 4: Simplify right side
    719,978.40x = 642,261,877,133.76
  5. Step 5: Solve for x
    x = 642,261,877,133.76/719,978.40
  6. Step 6: Final answer
    x = 892,057.15

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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.