Home / 648,119.30-971,012.55-554,807.30

Finding the Fourth Proportional to 648,119.30, 971,012.55 and 554,807.30

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Solution

The fourth proportional to 648,119.30, 971,012.55 and 554,807.30 is: 831,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,119.30 : 971,012.55 = 554,807.30 : x
  2. Step 2: Convert to fraction form
    648,119.30/971,012.55 = 554,807.30/x
  3. Step 3: Cross multiply
    648,119.30x = 971,012.55 × 554,807.30
  4. Step 4: Simplify right side
    648,119.30x = 538,724,851,131.62
  5. Step 5: Solve for x
    x = 538,724,851,131.62/648,119.30
  6. Step 6: Final answer
    x = 831,212.48

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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.