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Finding the Fourth Proportional to 774,595.82, 1,068,920.84 and 430,422.86

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Solution

The fourth proportional to 774,595.82, 1,068,920.84 and 430,422.86 is: 593,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,595.82 : 1,068,920.84 = 430,422.86 : x
  2. Step 2: Convert to fraction form
    774,595.82/1,068,920.84 = 430,422.86/x
  3. Step 3: Cross multiply
    774,595.82x = 1,068,920.84 × 430,422.86
  4. Step 4: Simplify right side
    774,595.82x = 460,087,965,066.40
  5. Step 5: Solve for x
    x = 460,087,965,066.40/774,595.82
  6. Step 6: Final answer
    x = 593,971.66

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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.