Home / 529,292.12-730,426.41-287,574.55

Finding the Fourth Proportional to 529,292.12, 730,426.41 and 287,574.55

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Solution

The fourth proportional to 529,292.12, 730,426.41 and 287,574.55 is: 396,854.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,292.12 : 730,426.41 = 287,574.55 : x
  2. Step 2: Convert to fraction form
    529,292.12/730,426.41 = 287,574.55/x
  3. Step 3: Cross multiply
    529,292.12x = 730,426.41 × 287,574.55
  4. Step 4: Simplify right side
    529,292.12x = 210,052,048,446.45
  5. Step 5: Solve for x
    x = 210,052,048,446.45/529,292.12
  6. Step 6: Final answer
    x = 396,854.67

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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.