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Finding the Fourth Proportional to 531,389.78, 797,239.94 and 171,552.18

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Solution

The fourth proportional to 531,389.78, 797,239.94 and 171,552.18 is: 257,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,389.78 : 797,239.94 = 171,552.18 : x
  2. Step 2: Convert to fraction form
    531,389.78/797,239.94 = 171,552.18/x
  3. Step 3: Cross multiply
    531,389.78x = 797,239.94 × 171,552.18
  4. Step 4: Simplify right side
    531,389.78x = 136,768,249,690.07
  5. Step 5: Solve for x
    x = 136,768,249,690.07/531,389.78
  6. Step 6: Final answer
    x = 257,378.40

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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.