Home / 927,711.05-1,280,428.36-634,145.25

Finding the Fourth Proportional to 927,711.05, 1,280,428.36 and 634,145.25

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Solution

The fourth proportional to 927,711.05, 1,280,428.36 and 634,145.25 is: 875,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,711.05 : 1,280,428.36 = 634,145.25 : x
  2. Step 2: Convert to fraction form
    927,711.05/1,280,428.36 = 634,145.25/x
  3. Step 3: Cross multiply
    927,711.05x = 1,280,428.36 × 634,145.25
  4. Step 4: Simplify right side
    927,711.05x = 811,977,565,675.53
  5. Step 5: Solve for x
    x = 811,977,565,675.53/927,711.05
  6. Step 6: Final answer
    x = 875,248.35

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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.