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Finding the Fourth Proportional to 472,443.53, 651,971.48 and 257,583.53

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Solution

The fourth proportional to 472,443.53, 651,971.48 and 257,583.53 is: 355,464.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,443.53 : 651,971.48 = 257,583.53 : x
  2. Step 2: Convert to fraction form
    472,443.53/651,971.48 = 257,583.53/x
  3. Step 3: Cross multiply
    472,443.53x = 651,971.48 × 257,583.53
  4. Step 4: Simplify right side
    472,443.53x = 167,937,110,729.95
  5. Step 5: Solve for x
    x = 167,937,110,729.95/472,443.53
  6. Step 6: Final answer
    x = 355,464.94

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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.