Home / 927,712.05-1,280,429.74-634,146.26

Finding the Fourth Proportional to 927,712.05, 1,280,429.74 and 634,146.26

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Solution

The fourth proportional to 927,712.05, 1,280,429.74 and 634,146.26 is: 875,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,712.05 : 1,280,429.74 = 634,146.26 : x
  2. Step 2: Convert to fraction form
    927,712.05/1,280,429.74 = 634,146.26/x
  3. Step 3: Cross multiply
    927,712.05x = 1,280,429.74 × 634,146.26
  4. Step 4: Simplify right side
    927,712.05x = 811,979,724,411.62
  5. Step 5: Solve for x
    x = 811,979,724,411.62/927,712.05
  6. Step 6: Final answer
    x = 875,249.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.