Home / 1,781,447.10-2,671,911.45-519,143.10

Finding the Fourth Proportional to 1,781,447.10, 2,671,911.45 and 519,143.10

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Solution

The fourth proportional to 1,781,447.10, 2,671,911.45 and 519,143.10 is: 778,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,447.10 : 2,671,911.45 = 519,143.10 : x
  2. Step 2: Convert to fraction form
    1,781,447.10/2,671,911.45 = 519,143.10/x
  3. Step 3: Cross multiply
    1,781,447.10x = 2,671,911.45 × 519,143.10
  4. Step 4: Simplify right side
    1,781,447.10x = 1,387,104,393,078.50
  5. Step 5: Solve for x
    x = 1,387,104,393,078.50/1,781,447.10
  6. Step 6: Final answer
    x = 778,639.11

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Double scale
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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.