Home / 436,154.40-657,200.16-358,999.20

Finding the Fourth Proportional to 436,154.40, 657,200.16 and 358,999.20

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Solution

The fourth proportional to 436,154.40, 657,200.16 and 358,999.20 is: 540,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,154.40 : 657,200.16 = 358,999.20 : x
  2. Step 2: Convert to fraction form
    436,154.40/657,200.16 = 358,999.20/x
  3. Step 3: Cross multiply
    436,154.40x = 657,200.16 × 358,999.20
  4. Step 4: Simplify right side
    436,154.40x = 235,934,331,679.87
  5. Step 5: Solve for x
    x = 235,934,331,679.87/436,154.40
  6. Step 6: Final answer
    x = 540,942.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.