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Finding the Fourth Proportional to 292,914.76, 439,070.46 and 115,349.80

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Solution

The fourth proportional to 292,914.76, 439,070.46 and 115,349.80 is: 172,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,914.76 : 439,070.46 = 115,349.80 : x
  2. Step 2: Convert to fraction form
    292,914.76/439,070.46 = 115,349.80/x
  3. Step 3: Cross multiply
    292,914.76x = 439,070.46 × 115,349.80
  4. Step 4: Simplify right side
    292,914.76x = 50,646,689,746.91
  5. Step 5: Solve for x
    x = 50,646,689,746.91/292,914.76
  6. Step 6: Final answer
    x = 172,905.90

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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.