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Finding the Fourth Proportional to 630,541.94, 870,168.88 and 344,077.74

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Solution

The fourth proportional to 630,541.94, 870,168.88 and 344,077.74 is: 474,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,541.94 : 870,168.88 = 344,077.74 : x
  2. Step 2: Convert to fraction form
    630,541.94/870,168.88 = 344,077.74/x
  3. Step 3: Cross multiply
    630,541.94x = 870,168.88 × 344,077.74
  4. Step 4: Simplify right side
    630,541.94x = 299,405,741,648.73
  5. Step 5: Solve for x
    x = 299,405,741,648.73/630,541.94
  6. Step 6: Final answer
    x = 474,838.74

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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.