Home / 436,230.80-654,346.20-286,931.60

Finding the Fourth Proportional to 436,230.80, 654,346.20 and 286,931.60

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Solution

The fourth proportional to 436,230.80, 654,346.20 and 286,931.60 is: 430,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,230.80 : 654,346.20 = 286,931.60 : x
  2. Step 2: Convert to fraction form
    436,230.80/654,346.20 = 286,931.60/x
  3. Step 3: Cross multiply
    436,230.80x = 654,346.20 × 286,931.60
  4. Step 4: Simplify right side
    436,230.80x = 187,752,602,119.92
  5. Step 5: Solve for x
    x = 187,752,602,119.92/436,230.80
  6. Step 6: Final answer
    x = 430,397.40

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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.