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Finding the Fourth Proportional to 922,612.20, 1,384,307.10 and 502,189.80

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Solution

The fourth proportional to 922,612.20, 1,384,307.10 and 502,189.80 is: 753,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,612.20 : 1,384,307.10 = 502,189.80 : x
  2. Step 2: Convert to fraction form
    922,612.20/1,384,307.10 = 502,189.80/x
  3. Step 3: Cross multiply
    922,612.20x = 1,384,307.10 × 502,189.80
  4. Step 4: Simplify right side
    922,612.20x = 695,184,905,687.58
  5. Step 5: Solve for x
    x = 695,184,905,687.58/922,612.20
  6. Step 6: Final answer
    x = 753,496.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.