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Finding the Fourth Proportional to 488,472.32, 732,985.60 and 207,960.32

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Solution

The fourth proportional to 488,472.32, 732,985.60 and 207,960.32 is: 312,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,472.32 : 732,985.60 = 207,960.32 : x
  2. Step 2: Convert to fraction form
    488,472.32/732,985.60 = 207,960.32/x
  3. Step 3: Cross multiply
    488,472.32x = 732,985.60 × 207,960.32
  4. Step 4: Simplify right side
    488,472.32x = 152,431,919,931.39
  5. Step 5: Solve for x
    x = 152,431,919,931.39/488,472.32
  6. Step 6: Final answer
    x = 312,058.46

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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.