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Finding the Fourth Proportional to 530,024.40, 793,092.60 and 390,056.40

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Solution

The fourth proportional to 530,024.40, 793,092.60 and 390,056.40 is: 583,653.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,024.40 : 793,092.60 = 390,056.40 : x
  2. Step 2: Convert to fraction form
    530,024.40/793,092.60 = 390,056.40/x
  3. Step 3: Cross multiply
    530,024.40x = 793,092.60 × 390,056.40
  4. Step 4: Simplify right side
    530,024.40x = 309,350,844,422.64
  5. Step 5: Solve for x
    x = 309,350,844,422.64/530,024.40
  6. Step 6: Final answer
    x = 583,653.97

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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.