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Finding the Fourth Proportional to 549,617.28, 824,569.28 and 155,633.28

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Solution

The fourth proportional to 549,617.28, 824,569.28 and 155,633.28 is: 233,490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,617.28 : 824,569.28 = 155,633.28 : x
  2. Step 2: Convert to fraction form
    549,617.28/824,569.28 = 155,633.28/x
  3. Step 3: Cross multiply
    549,617.28x = 824,569.28 × 155,633.28
  4. Step 4: Simplify right side
    549,617.28x = 128,330,421,633.64
  5. Step 5: Solve for x
    x = 128,330,421,633.64/549,617.28
  6. Step 6: Final answer
    x = 233,490.51

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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.