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Finding the Fourth Proportional to 292,487, 438,730.56 and 105,498.48

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Solution

The fourth proportional to 292,487, 438,730.56 and 105,498.48 is: 158,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,487 : 438,730.56 = 105,498.48 : x
  2. Step 2: Convert to fraction form
    292,487/438,730.56 = 105,498.48/x
  3. Step 3: Cross multiply
    292,487x = 438,730.56 × 105,498.48
  4. Step 4: Simplify right side
    292,487x = 46,285,407,209.55
  5. Step 5: Solve for x
    x = 46,285,407,209.55/292,487
  6. Step 6: Final answer
    x = 158,247.74

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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.