Home / 916,715.70-1,377,147.15-636,779.70

Finding the Fourth Proportional to 916,715.70, 1,377,147.15 and 636,779.70

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Solution

The fourth proportional to 916,715.70, 1,377,147.15 and 636,779.70 is: 956,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,715.70 : 1,377,147.15 = 636,779.70 : x
  2. Step 2: Convert to fraction form
    916,715.70/1,377,147.15 = 636,779.70/x
  3. Step 3: Cross multiply
    916,715.70x = 1,377,147.15 × 636,779.70
  4. Step 4: Simplify right side
    916,715.70x = 876,939,349,032.86
  5. Step 5: Solve for x
    x = 876,939,349,032.86/916,715.70
  6. Step 6: Final answer
    x = 956,609.94

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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.