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Finding the Fourth Proportional to 768,296.68, 1,060,073.22 and 462,290.92

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Solution

The fourth proportional to 768,296.68, 1,060,073.22 and 462,290.92 is: 637,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,296.68 : 1,060,073.22 = 462,290.92 : x
  2. Step 2: Convert to fraction form
    768,296.68/1,060,073.22 = 462,290.92/x
  3. Step 3: Cross multiply
    768,296.68x = 1,060,073.22 × 462,290.92
  4. Step 4: Simplify right side
    768,296.68x = 490,062,224,141.16
  5. Step 5: Solve for x
    x = 490,062,224,141.16/768,296.68
  6. Step 6: Final answer
    x = 637,855.45

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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.