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Finding the Fourth Proportional to 575,776.42, 863,775.33 and 220,762.76

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Solution

The fourth proportional to 575,776.42, 863,775.33 and 220,762.76 is: 331,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,776.42 : 863,775.33 = 220,762.76 : x
  2. Step 2: Convert to fraction form
    575,776.42/863,775.33 = 220,762.76/x
  3. Step 3: Cross multiply
    575,776.42x = 863,775.33 × 220,762.76
  4. Step 4: Simplify right side
    575,776.42x = 190,689,425,870.71
  5. Step 5: Solve for x
    x = 190,689,425,870.71/575,776.42
  6. Step 6: Final answer
    x = 331,186.58

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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.