Home / 838,711.86-1,257,018.02-660,515.10

Finding the Fourth Proportional to 838,711.86, 1,257,018.02 and 660,515.10

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Solution

The fourth proportional to 838,711.86, 1,257,018.02 and 660,515.10 is: 989,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,711.86 : 1,257,018.02 = 660,515.10 : x
  2. Step 2: Convert to fraction form
    838,711.86/1,257,018.02 = 660,515.10/x
  3. Step 3: Cross multiply
    838,711.86x = 1,257,018.02 × 660,515.10
  4. Step 4: Simplify right side
    838,711.86x = 830,279,383,182.10
  5. Step 5: Solve for x
    x = 830,279,383,182.10/838,711.86
  6. Step 6: Final answer
    x = 989,945.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.