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Finding the Fourth Proportional to 644,365.29, 966,177.54 and 265,547.55

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Solution

The fourth proportional to 644,365.29, 966,177.54 and 265,547.55 is: 398,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,365.29 : 966,177.54 = 265,547.55 : x
  2. Step 2: Convert to fraction form
    644,365.29/966,177.54 = 265,547.55/x
  3. Step 3: Cross multiply
    644,365.29x = 966,177.54 × 265,547.55
  4. Step 4: Simplify right side
    644,365.29x = 256,566,078,612.03
  5. Step 5: Solve for x
    x = 256,566,078,612.03/644,365.29
  6. Step 6: Final answer
    x = 398,168.68

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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.