Home / 879,399.73-1,214,329.01-553,256.36

Finding the Fourth Proportional to 879,399.73, 1,214,329.01 and 553,256.36

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Solution

The fourth proportional to 879,399.73, 1,214,329.01 and 553,256.36 is: 763,970.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,399.73 : 1,214,329.01 = 553,256.36 : x
  2. Step 2: Convert to fraction form
    879,399.73/1,214,329.01 = 553,256.36/x
  3. Step 3: Cross multiply
    879,399.73x = 1,214,329.01 × 553,256.36
  4. Step 4: Simplify right side
    879,399.73x = 671,835,245,148.72
  5. Step 5: Solve for x
    x = 671,835,245,148.72/879,399.73
  6. Step 6: Final answer
    x = 763,970.27

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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.