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Finding the Fourth Proportional to 318,897.48, 440,078.54 and 175,657.52

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Solution

The fourth proportional to 318,897.48, 440,078.54 and 175,657.52 is: 242,407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,897.48 : 440,078.54 = 175,657.52 : x
  2. Step 2: Convert to fraction form
    318,897.48/440,078.54 = 175,657.52/x
  3. Step 3: Cross multiply
    318,897.48x = 440,078.54 × 175,657.52
  4. Step 4: Simplify right side
    318,897.48x = 77,303,107,264.50
  5. Step 5: Solve for x
    x = 77,303,107,264.50/318,897.48
  6. Step 6: Final answer
    x = 242,407.39

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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.