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Finding the Fourth Proportional to 538,525.40, 752,461 and 538,525.40

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Solution

The fourth proportional to 538,525.40, 752,461 and 538,525.40 is: 752,461

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,525.40 : 752,461 = 538,525.40 : x
  2. Step 2: Convert to fraction form
    538,525.40/752,461 = 538,525.40/x
  3. Step 3: Cross multiply
    538,525.40x = 752,461 × 538,525.40
  4. Step 4: Simplify right side
    538,525.40x = 405,219,361,009.40
  5. Step 5: Solve for x
    x = 405,219,361,009.40/538,525.40
  6. Step 6: Final answer
    x = 752,461

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.