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Finding the Fourth Proportional to 676,203.71, 933,172.59 and 370,275.21

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Solution

The fourth proportional to 676,203.71, 933,172.59 and 370,275.21 is: 510,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,203.71 : 933,172.59 = 370,275.21 : x
  2. Step 2: Convert to fraction form
    676,203.71/933,172.59 = 370,275.21/x
  3. Step 3: Cross multiply
    676,203.71x = 933,172.59 × 370,275.21
  4. Step 4: Simplify right side
    676,203.71x = 345,530,676,728.49
  5. Step 5: Solve for x
    x = 345,530,676,728.49/676,203.71
  6. Step 6: Final answer
    x = 510,986.07

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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.