Home / 679,968.40-1,019,952.60-409,363.60

Finding the Fourth Proportional to 679,968.40, 1,019,952.60 and 409,363.60

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Solution

The fourth proportional to 679,968.40, 1,019,952.60 and 409,363.60 is: 614,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,968.40 : 1,019,952.60 = 409,363.60 : x
  2. Step 2: Convert to fraction form
    679,968.40/1,019,952.60 = 409,363.60/x
  3. Step 3: Cross multiply
    679,968.40x = 1,019,952.60 × 409,363.60
  4. Step 4: Simplify right side
    679,968.40x = 417,531,468,165.36
  5. Step 5: Solve for x
    x = 417,531,468,165.36/679,968.40
  6. Step 6: Final answer
    x = 614,045.40

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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.