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Finding the Fourth Proportional to 586,209.20, 879,313.80 and 349,818.80

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Solution

The fourth proportional to 586,209.20, 879,313.80 and 349,818.80 is: 524,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,209.20 : 879,313.80 = 349,818.80 : x
  2. Step 2: Convert to fraction form
    586,209.20/879,313.80 = 349,818.80/x
  3. Step 3: Cross multiply
    586,209.20x = 879,313.80 × 349,818.80
  4. Step 4: Simplify right side
    586,209.20x = 307,600,498,339.44
  5. Step 5: Solve for x
    x = 307,600,498,339.44/586,209.20
  6. Step 6: Final answer
    x = 524,728.20

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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.