Home / 1,603,457.61-2,405,298.69-643,913.16

Finding the Fourth Proportional to 1,603,457.61, 2,405,298.69 and 643,913.16

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Solution

The fourth proportional to 1,603,457.61, 2,405,298.69 and 643,913.16 is: 965,914.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,457.61 : 2,405,298.69 = 643,913.16 : x
  2. Step 2: Convert to fraction form
    1,603,457.61/2,405,298.69 = 643,913.16/x
  3. Step 3: Cross multiply
    1,603,457.61x = 2,405,298.69 × 643,913.16
  4. Step 4: Simplify right side
    1,603,457.61x = 1,548,803,480,221.76
  5. Step 5: Solve for x
    x = 1,548,803,480,221.76/1,603,457.61
  6. Step 6: Final answer
    x = 965,914.83

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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.