Home / 806,666.67-1,210,748.16-407,587.71

Finding the Fourth Proportional to 806,666.67, 1,210,748.16 and 407,587.71

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Solution

The fourth proportional to 806,666.67, 1,210,748.16 and 407,587.71 is: 611,759.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,666.67 : 1,210,748.16 = 407,587.71 : x
  2. Step 2: Convert to fraction form
    806,666.67/1,210,748.16 = 407,587.71/x
  3. Step 3: Cross multiply
    806,666.67x = 1,210,748.16 × 407,587.71
  4. Step 4: Simplify right side
    806,666.67x = 493,486,069,921.11
  5. Step 5: Solve for x
    x = 493,486,069,921.11/806,666.67
  6. Step 6: Final answer
    x = 611,759.59

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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.