Home / 678,938.34-936,950.55-373,033.81

Finding the Fourth Proportional to 678,938.34, 936,950.55 and 373,033.81

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Solution

The fourth proportional to 678,938.34, 936,950.55 and 373,033.81 is: 514,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,938.34 : 936,950.55 = 373,033.81 : x
  2. Step 2: Convert to fraction form
    678,938.34/936,950.55 = 373,033.81/x
  3. Step 3: Cross multiply
    678,938.34x = 936,950.55 × 373,033.81
  4. Step 4: Simplify right side
    678,938.34x = 349,514,228,763.34
  5. Step 5: Solve for x
    x = 349,514,228,763.34/678,938.34
  6. Step 6: Final answer
    x = 514,795.24

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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.