Home / 1,328,838.02-1,993,547.72-430,370.57

Finding the Fourth Proportional to 1,328,838.02, 1,993,547.72 and 430,370.57

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Solution

The fourth proportional to 1,328,838.02, 1,993,547.72 and 430,370.57 is: 645,649.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,838.02 : 1,993,547.72 = 430,370.57 : x
  2. Step 2: Convert to fraction form
    1,328,838.02/1,993,547.72 = 430,370.57/x
  3. Step 3: Cross multiply
    1,328,838.02x = 1,993,547.72 × 430,370.57
  4. Step 4: Simplify right side
    1,328,838.02x = 857,964,256,459.01
  5. Step 5: Solve for x
    x = 857,964,256,459.01/1,328,838.02
  6. Step 6: Final answer
    x = 645,649.99

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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.