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Finding the Fourth Proportional to 292,509.50, 438,764.25 and 70,893.50

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Solution

The fourth proportional to 292,509.50, 438,764.25 and 70,893.50 is: 106,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,509.50 : 438,764.25 = 70,893.50 : x
  2. Step 2: Convert to fraction form
    292,509.50/438,764.25 = 70,893.50/x
  3. Step 3: Cross multiply
    292,509.50x = 438,764.25 × 70,893.50
  4. Step 4: Simplify right side
    292,509.50x = 31,105,533,357.38
  5. Step 5: Solve for x
    x = 31,105,533,357.38/292,509.50
  6. Step 6: Final answer
    x = 106,340.25

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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.