Home / 899,009.20-1,240,670.32-517,036.24

Finding the Fourth Proportional to 899,009.20, 1,240,670.32 and 517,036.24

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Solution

The fourth proportional to 899,009.20, 1,240,670.32 and 517,036.24 is: 713,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,009.20 : 1,240,670.32 = 517,036.24 : x
  2. Step 2: Convert to fraction form
    899,009.20/1,240,670.32 = 517,036.24/x
  3. Step 3: Cross multiply
    899,009.20x = 1,240,670.32 × 517,036.24
  4. Step 4: Simplify right side
    899,009.20x = 641,471,517,332.40
  5. Step 5: Solve for x
    x = 641,471,517,332.40/899,009.20
  6. Step 6: Final answer
    x = 713,531.65

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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.