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Finding the Fourth Proportional to 977,375.06, 1,347,282.48 and 686,169.69

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Solution

The fourth proportional to 977,375.06, 1,347,282.48 and 686,169.69 is: 945,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,375.06 : 1,347,282.48 = 686,169.69 : x
  2. Step 2: Convert to fraction form
    977,375.06/1,347,282.48 = 686,169.69/x
  3. Step 3: Cross multiply
    977,375.06x = 1,347,282.48 × 686,169.69
  4. Step 4: Simplify right side
    977,375.06x = 924,464,401,644.03
  5. Step 5: Solve for x
    x = 924,464,401,644.03/977,375.06
  6. Step 6: Final answer
    x = 945,864.53

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1.5x scale

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.