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Finding the Fourth Proportional to 577,184.40, 865,776.60 and 472,208.40

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Solution

The fourth proportional to 577,184.40, 865,776.60 and 472,208.40 is: 708,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,184.40 : 865,776.60 = 472,208.40 : x
  2. Step 2: Convert to fraction form
    577,184.40/865,776.60 = 472,208.40/x
  3. Step 3: Cross multiply
    577,184.40x = 865,776.60 × 472,208.40
  4. Step 4: Simplify right side
    577,184.40x = 408,826,983,043.44
  5. Step 5: Solve for x
    x = 408,826,983,043.44/577,184.40
  6. Step 6: Final answer
    x = 708,312.60

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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.