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Finding the Fourth Proportional to 651,655.20, 977,774.40 and 296,486.40

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Solution

The fourth proportional to 651,655.20, 977,774.40 and 296,486.40 is: 444,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,655.20 : 977,774.40 = 296,486.40 : x
  2. Step 2: Convert to fraction form
    651,655.20/977,774.40 = 296,486.40/x
  3. Step 3: Cross multiply
    651,655.20x = 977,774.40 × 296,486.40
  4. Step 4: Simplify right side
    651,655.20x = 289,896,811,868.16
  5. Step 5: Solve for x
    x = 289,896,811,868.16/651,655.20
  6. Step 6: Final answer
    x = 444,862.27

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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.