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Finding the Fourth Proportional to 570,852.48, 787,777.20 and 316,202.88

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Solution

The fourth proportional to 570,852.48, 787,777.20 and 316,202.88 is: 436,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,852.48 : 787,777.20 = 316,202.88 : x
  2. Step 2: Convert to fraction form
    570,852.48/787,777.20 = 316,202.88/x
  3. Step 3: Cross multiply
    570,852.48x = 787,777.20 × 316,202.88
  4. Step 4: Simplify right side
    570,852.48x = 249,097,419,438.34
  5. Step 5: Solve for x
    x = 249,097,419,438.34/570,852.48
  6. Step 6: Final answer
    x = 436,360.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.