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Finding the Fourth Proportional to 675,995.06, 933,108 and 418,069.46

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Solution

The fourth proportional to 675,995.06, 933,108 and 418,069.46 is: 577,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,995.06 : 933,108 = 418,069.46 : x
  2. Step 2: Convert to fraction form
    675,995.06/933,108 = 418,069.46/x
  3. Step 3: Cross multiply
    675,995.06x = 933,108 × 418,069.46
  4. Step 4: Simplify right side
    675,995.06x = 390,103,957,681.68
  5. Step 5: Solve for x
    x = 390,103,957,681.68/675,995.06
  6. Step 6: Final answer
    x = 577,081.08

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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.