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Finding the Fourth Proportional to 580,013.40, 869,328.90 and 243,053.40

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Solution

The fourth proportional to 580,013.40, 869,328.90 and 243,053.40 is: 364,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,013.40 : 869,328.90 = 243,053.40 : x
  2. Step 2: Convert to fraction form
    580,013.40/869,328.90 = 243,053.40/x
  3. Step 3: Cross multiply
    580,013.40x = 869,328.90 × 243,053.40
  4. Step 4: Simplify right side
    580,013.40x = 211,293,344,863.26
  5. Step 5: Solve for x
    x = 211,293,344,863.26/580,013.40
  6. Step 6: Final answer
    x = 364,290.45

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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.