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Finding the Fourth Proportional to 536,113.40, 803,478.90 and 410,833.40

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Solution

The fourth proportional to 536,113.40, 803,478.90 and 410,833.40 is: 615,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,113.40 : 803,478.90 = 410,833.40 : x
  2. Step 2: Convert to fraction form
    536,113.40/803,478.90 = 410,833.40/x
  3. Step 3: Cross multiply
    536,113.40x = 803,478.90 × 410,833.40
  4. Step 4: Simplify right side
    536,113.40x = 330,095,968,315.26
  5. Step 5: Solve for x
    x = 330,095,968,315.26/536,113.40
  6. Step 6: Final answer
    x = 615,720.42

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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.