Home / 661,220.24-912,583.67-403,246.85

Finding the Fourth Proportional to 661,220.24, 912,583.67 and 403,246.85

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Solution

The fourth proportional to 661,220.24, 912,583.67 and 403,246.85 is: 556,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,220.24 : 912,583.67 = 403,246.85 : x
  2. Step 2: Convert to fraction form
    661,220.24/912,583.67 = 403,246.85/x
  3. Step 3: Cross multiply
    661,220.24x = 912,583.67 × 403,246.85
  4. Step 4: Simplify right side
    661,220.24x = 367,996,483,709.79
  5. Step 5: Solve for x
    x = 367,996,483,709.79/661,220.24
  6. Step 6: Final answer
    x = 556,541.47

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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.