Home / 910,305.36-1,256,693.85-665,014.86

Finding the Fourth Proportional to 910,305.36, 1,256,693.85 and 665,014.86

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Solution

The fourth proportional to 910,305.36, 1,256,693.85 and 665,014.86 is: 918,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,305.36 : 1,256,693.85 = 665,014.86 : x
  2. Step 2: Convert to fraction form
    910,305.36/1,256,693.85 = 665,014.86/x
  3. Step 3: Cross multiply
    910,305.36x = 1,256,693.85 × 665,014.86
  4. Step 4: Simplify right side
    910,305.36x = 835,720,084,720.61
  5. Step 5: Solve for x
    x = 835,720,084,720.61/910,305.36
  6. Step 6: Final answer
    x = 918,065.65

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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.