Home / 916,711.20-1,377,140.40-636,775.20

Finding the Fourth Proportional to 916,711.20, 1,377,140.40 and 636,775.20

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Solution

The fourth proportional to 916,711.20, 1,377,140.40 and 636,775.20 is: 956,603.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,711.20 : 1,377,140.40 = 636,775.20 : x
  2. Step 2: Convert to fraction form
    916,711.20/1,377,140.40 = 636,775.20/x
  3. Step 3: Cross multiply
    916,711.20x = 1,377,140.40 × 636,775.20
  4. Step 4: Simplify right side
    916,711.20x = 876,928,853,638.08
  5. Step 5: Solve for x
    x = 876,928,853,638.08/916,711.20
  6. Step 6: Final answer
    x = 956,603.18

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1.5x scale

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.