Home / 530,300.38-731,814.64-291,836.38

Finding the Fourth Proportional to 530,300.38, 731,814.64 and 291,836.38

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Solution

The fourth proportional to 530,300.38, 731,814.64 and 291,836.38 is: 402,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,300.38 : 731,814.64 = 291,836.38 : x
  2. Step 2: Convert to fraction form
    530,300.38/731,814.64 = 291,836.38/x
  3. Step 3: Cross multiply
    530,300.38x = 731,814.64 × 291,836.38
  4. Step 4: Simplify right side
    530,300.38x = 213,570,135,368.60
  5. Step 5: Solve for x
    x = 213,570,135,368.60/530,300.38
  6. Step 6: Final answer
    x = 402,734.27

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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.