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Finding the Fourth Proportional to 570,059.70, 854,554.95 and 215,312.10

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Solution

The fourth proportional to 570,059.70, 854,554.95 and 215,312.10 is: 322,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,059.70 : 854,554.95 = 215,312.10 : x
  2. Step 2: Convert to fraction form
    570,059.70/854,554.95 = 215,312.10/x
  3. Step 3: Cross multiply
    570,059.70x = 854,554.95 × 215,312.10
  4. Step 4: Simplify right side
    570,059.70x = 183,996,020,849.90
  5. Step 5: Solve for x
    x = 183,996,020,849.90/570,059.70
  6. Step 6: Final answer
    x = 322,766.23

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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.