Home / 949,089.21-1,309,701.11-519,387.45

Finding the Fourth Proportional to 949,089.21, 1,309,701.11 and 519,387.45

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Solution

The fourth proportional to 949,089.21, 1,309,701.11 and 519,387.45 is: 716,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,089.21 : 1,309,701.11 = 519,387.45 : x
  2. Step 2: Convert to fraction form
    949,089.21/1,309,701.11 = 519,387.45/x
  3. Step 3: Cross multiply
    949,089.21x = 1,309,701.11 × 519,387.45
  4. Step 4: Simplify right side
    949,089.21x = 680,242,319,785.07
  5. Step 5: Solve for x
    x = 680,242,319,785.07/949,089.21
  6. Step 6: Final answer
    x = 716,731.70

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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.