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Finding the Fourth Proportional to 586,205.70, 879,308.55 and 546,839.70

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Solution

The fourth proportional to 586,205.70, 879,308.55 and 546,839.70 is: 820,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,205.70 : 879,308.55 = 546,839.70 : x
  2. Step 2: Convert to fraction form
    586,205.70/879,308.55 = 546,839.70/x
  3. Step 3: Cross multiply
    586,205.70x = 879,308.55 × 546,839.70
  4. Step 4: Simplify right side
    586,205.70x = 480,840,823,689.44
  5. Step 5: Solve for x
    x = 480,840,823,689.44/586,205.70
  6. Step 6: Final answer
    x = 820,259.55

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Similar ratio
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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.