Home / 1,258,666.80-1,888,000.20-417,218.55

Finding the Fourth Proportional to 1,258,666.80, 1,888,000.20 and 417,218.55

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Solution

The fourth proportional to 1,258,666.80, 1,888,000.20 and 417,218.55 is: 625,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,666.80 : 1,888,000.20 = 417,218.55 : x
  2. Step 2: Convert to fraction form
    1,258,666.80/1,888,000.20 = 417,218.55/x
  3. Step 3: Cross multiply
    1,258,666.80x = 1,888,000.20 × 417,218.55
  4. Step 4: Simplify right side
    1,258,666.80x = 787,708,705,843.71
  5. Step 5: Solve for x
    x = 787,708,705,843.71/1,258,666.80
  6. Step 6: Final answer
    x = 625,827.83

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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.