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Finding the Fourth Proportional to 403,838.76, 557,277.54 and 234,128.04

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Solution

The fourth proportional to 403,838.76, 557,277.54 and 234,128.04 is: 323,085.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,838.76 : 557,277.54 = 234,128.04 : x
  2. Step 2: Convert to fraction form
    403,838.76/557,277.54 = 234,128.04/x
  3. Step 3: Cross multiply
    403,838.76x = 557,277.54 × 234,128.04
  4. Step 4: Simplify right side
    403,838.76x = 130,474,298,176.22
  5. Step 5: Solve for x
    x = 130,474,298,176.22/403,838.76
  6. Step 6: Final answer
    x = 323,085.13

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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.