Home / 891,001.40-1,336,502.10-838,513.40

Finding the Fourth Proportional to 891,001.40, 1,336,502.10 and 838,513.40

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Solution

The fourth proportional to 891,001.40, 1,336,502.10 and 838,513.40 is: 1,257,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,001.40 : 1,336,502.10 = 838,513.40 : x
  2. Step 2: Convert to fraction form
    891,001.40/1,336,502.10 = 838,513.40/x
  3. Step 3: Cross multiply
    891,001.40x = 1,336,502.10 × 838,513.40
  4. Step 4: Simplify right side
    891,001.40x = 1,120,674,919,978.14
  5. Step 5: Solve for x
    x = 1,120,674,919,978.14/891,001.40
  6. Step 6: Final answer
    x = 1,257,770.10

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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.