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Finding the Fourth Proportional to 577,890.90, 866,820.15 and 262,347.30

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Solution

The fourth proportional to 577,890.90, 866,820.15 and 262,347.30 is: 393,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,890.90 : 866,820.15 = 262,347.30 : x
  2. Step 2: Convert to fraction form
    577,890.90/866,820.15 = 262,347.30/x
  3. Step 3: Cross multiply
    577,890.90x = 866,820.15 × 262,347.30
  4. Step 4: Simplify right side
    577,890.90x = 227,407,925,938.10
  5. Step 5: Solve for x
    x = 227,407,925,938.10/577,890.90
  6. Step 6: Final answer
    x = 393,513.60

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1.5x scale

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.