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Finding the Fourth Proportional to 650,985.66, 977,564.70 and 439,118.82

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Solution

The fourth proportional to 650,985.66, 977,564.70 and 439,118.82 is: 659,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,985.66 : 977,564.70 = 439,118.82 : x
  2. Step 2: Convert to fraction form
    650,985.66/977,564.70 = 439,118.82/x
  3. Step 3: Cross multiply
    650,985.66x = 977,564.70 × 439,118.82
  4. Step 4: Simplify right side
    650,985.66x = 429,267,057,537.65
  5. Step 5: Solve for x
    x = 429,267,057,537.65/650,985.66
  6. Step 6: Final answer
    x = 659,410.93

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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.