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Finding the Fourth Proportional to 565,641.38, 780,538.64 and 333,031.34

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Solution

The fourth proportional to 565,641.38, 780,538.64 and 333,031.34 is: 459,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,641.38 : 780,538.64 = 333,031.34 : x
  2. Step 2: Convert to fraction form
    565,641.38/780,538.64 = 333,031.34/x
  3. Step 3: Cross multiply
    565,641.38x = 780,538.64 × 333,031.34
  4. Step 4: Simplify right side
    565,641.38x = 259,943,829,200.98
  5. Step 5: Solve for x
    x = 259,943,829,200.98/565,641.38
  6. Step 6: Final answer
    x = 459,555.89

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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.