Home / 938,253.47-1,406,291.49-431,751.11

Finding the Fourth Proportional to 938,253.47, 1,406,291.49 and 431,751.11

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Solution

The fourth proportional to 938,253.47, 1,406,291.49 and 431,751.11 is: 647,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,253.47 : 1,406,291.49 = 431,751.11 : x
  2. Step 2: Convert to fraction form
    938,253.47/1,406,291.49 = 431,751.11/x
  3. Step 3: Cross multiply
    938,253.47x = 1,406,291.49 × 431,751.11
  4. Step 4: Simplify right side
    938,253.47x = 607,167,904,759.60
  5. Step 5: Solve for x
    x = 607,167,904,759.60/938,253.47
  6. Step 6: Final answer
    x = 647,125.67

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Double scale
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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.