Home / 1,139,949.48-1,573,043.52-630,640.92

Finding the Fourth Proportional to 1,139,949.48, 1,573,043.52 and 630,640.92

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Solution

The fourth proportional to 1,139,949.48, 1,573,043.52 and 630,640.92 is: 870,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,949.48 : 1,573,043.52 = 630,640.92 : x
  2. Step 2: Convert to fraction form
    1,139,949.48/1,573,043.52 = 630,640.92/x
  3. Step 3: Cross multiply
    1,139,949.48x = 1,573,043.52 × 630,640.92
  4. Step 4: Simplify right side
    1,139,949.48x = 992,025,612,652.84
  5. Step 5: Solve for x
    x = 992,025,612,652.84/1,139,949.48
  6. Step 6: Final answer
    x = 870,236.47

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Double scale
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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.