Home / 899,005.78-1,240,665.74-517,032.91

Finding the Fourth Proportional to 899,005.78, 1,240,665.74 and 517,032.91

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Solution

The fourth proportional to 899,005.78, 1,240,665.74 and 517,032.91 is: 713,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,005.78 : 1,240,665.74 = 517,032.91 : x
  2. Step 2: Convert to fraction form
    899,005.78/1,240,665.74 = 517,032.91/x
  3. Step 3: Cross multiply
    899,005.78x = 1,240,665.74 × 517,032.91
  4. Step 4: Simplify right side
    899,005.78x = 641,465,017,889.50
  5. Step 5: Solve for x
    x = 641,465,017,889.50/899,005.78
  6. Step 6: Final answer
    x = 713,527.13

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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.