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Finding the Fourth Proportional to 586,468.80, 879,703.20 and 383,515.20

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Solution

The fourth proportional to 586,468.80, 879,703.20 and 383,515.20 is: 575,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,468.80 : 879,703.20 = 383,515.20 : x
  2. Step 2: Convert to fraction form
    586,468.80/879,703.20 = 383,515.20/x
  3. Step 3: Cross multiply
    586,468.80x = 879,703.20 × 383,515.20
  4. Step 4: Simplify right side
    586,468.80x = 337,379,548,688.64
  5. Step 5: Solve for x
    x = 337,379,548,688.64/586,468.80
  6. Step 6: Final answer
    x = 575,272.80

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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.