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Finding the Fourth Proportional to 1,997,948.40, 2,996,922.60 and 578,050.80

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Solution

The fourth proportional to 1,997,948.40, 2,996,922.60 and 578,050.80 is: 867,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,948.40 : 2,996,922.60 = 578,050.80 : x
  2. Step 2: Convert to fraction form
    1,997,948.40/2,996,922.60 = 578,050.80/x
  3. Step 3: Cross multiply
    1,997,948.40x = 2,996,922.60 × 578,050.80
  4. Step 4: Simplify right side
    1,997,948.40x = 1,732,373,506,468.08
  5. Step 5: Solve for x
    x = 1,732,373,506,468.08/1,997,948.40
  6. Step 6: Final answer
    x = 867,076.20

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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.