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Finding the Fourth Proportional to 265,897.40, 398,846.10 and 242,569.40

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Solution

The fourth proportional to 265,897.40, 398,846.10 and 242,569.40 is: 363,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,897.40 : 398,846.10 = 242,569.40 : x
  2. Step 2: Convert to fraction form
    265,897.40/398,846.10 = 242,569.40/x
  3. Step 3: Cross multiply
    265,897.40x = 398,846.10 × 242,569.40
  4. Step 4: Simplify right side
    265,897.40x = 96,747,859,169.34
  5. Step 5: Solve for x
    x = 96,747,859,169.34/265,897.40
  6. Step 6: Final answer
    x = 363,854.10

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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.