Home / 811,000.77-1,119,102.15-448,374.98

Finding the Fourth Proportional to 811,000.77, 1,119,102.15 and 448,374.98

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Solution

The fourth proportional to 811,000.77, 1,119,102.15 and 448,374.98 is: 618,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,000.77 : 1,119,102.15 = 448,374.98 : x
  2. Step 2: Convert to fraction form
    811,000.77/1,119,102.15 = 448,374.98/x
  3. Step 3: Cross multiply
    811,000.77x = 1,119,102.15 × 448,374.98
  4. Step 4: Simplify right side
    811,000.77x = 501,777,398,528.70
  5. Step 5: Solve for x
    x = 501,777,398,528.70/811,000.77
  6. Step 6: Final answer
    x = 618,713.84

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Double scale
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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.