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Finding the Fourth Proportional to 538,055.92, 742,339.44 and 347,196.16

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Solution

The fourth proportional to 538,055.92, 742,339.44 and 347,196.16 is: 479,016.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,055.92 : 742,339.44 = 347,196.16 : x
  2. Step 2: Convert to fraction form
    538,055.92/742,339.44 = 347,196.16/x
  3. Step 3: Cross multiply
    538,055.92x = 742,339.44 × 347,196.16
  4. Step 4: Simplify right side
    538,055.92x = 257,737,402,984.55
  5. Step 5: Solve for x
    x = 257,737,402,984.55/538,055.92
  6. Step 6: Final answer
    x = 479,016.02

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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.