Home / 853,744.80-1,178,259.12-491,184.48

Finding the Fourth Proportional to 853,744.80, 1,178,259.12 and 491,184.48

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Solution

The fourth proportional to 853,744.80, 1,178,259.12 and 491,184.48 is: 677,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,744.80 : 1,178,259.12 = 491,184.48 : x
  2. Step 2: Convert to fraction form
    853,744.80/1,178,259.12 = 491,184.48/x
  3. Step 3: Cross multiply
    853,744.80x = 1,178,259.12 × 491,184.48
  4. Step 4: Simplify right side
    853,744.80x = 578,742,593,162.46
  5. Step 5: Solve for x
    x = 578,742,593,162.46/853,744.80
  6. Step 6: Final answer
    x = 677,887.11

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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.