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Finding the Fourth Proportional to 778,595.76, 1,167,530.76 and 404,518.32

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Solution

The fourth proportional to 778,595.76, 1,167,530.76 and 404,518.32 is: 606,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,595.76 : 1,167,530.76 = 404,518.32 : x
  2. Step 2: Convert to fraction form
    778,595.76/1,167,530.76 = 404,518.32/x
  3. Step 3: Cross multiply
    778,595.76x = 1,167,530.76 × 404,518.32
  4. Step 4: Simplify right side
    778,595.76x = 472,287,581,583.52
  5. Step 5: Solve for x
    x = 472,287,581,583.52/778,595.76
  6. Step 6: Final answer
    x = 606,588.95

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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.