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Finding the Fourth Proportional to 647,192.44, 893,129.70 and 360,730.72

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Solution

The fourth proportional to 647,192.44, 893,129.70 and 360,730.72 is: 497,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,192.44 : 893,129.70 = 360,730.72 : x
  2. Step 2: Convert to fraction form
    647,192.44/893,129.70 = 360,730.72/x
  3. Step 3: Cross multiply
    647,192.44x = 893,129.70 × 360,730.72
  4. Step 4: Simplify right side
    647,192.44x = 322,179,319,734.38
  5. Step 5: Solve for x
    x = 322,179,319,734.38/647,192.44
  6. Step 6: Final answer
    x = 497,810.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.