Home / 830,411.10-1,242,664.20-576,500.40

Finding the Fourth Proportional to 830,411.10, 1,242,664.20 and 576,500.40

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Solution

The fourth proportional to 830,411.10, 1,242,664.20 and 576,500.40 is: 862,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,411.10 : 1,242,664.20 = 576,500.40 : x
  2. Step 2: Convert to fraction form
    830,411.10/1,242,664.20 = 576,500.40/x
  3. Step 3: Cross multiply
    830,411.10x = 1,242,664.20 × 576,500.40
  4. Step 4: Simplify right side
    830,411.10x = 716,396,408,365.68
  5. Step 5: Solve for x
    x = 716,396,408,365.68/830,411.10
  6. Step 6: Final answer
    x = 862,700.91

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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.