Home / 678,923.80-936,929.70-373,004.12

Finding the Fourth Proportional to 678,923.80, 936,929.70 and 373,004.12

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Solution

The fourth proportional to 678,923.80, 936,929.70 and 373,004.12 is: 514,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,923.80 : 936,929.70 = 373,004.12 : x
  2. Step 2: Convert to fraction form
    678,923.80/936,929.70 = 373,004.12/x
  3. Step 3: Cross multiply
    678,923.80x = 936,929.70 × 373,004.12
  4. Step 4: Simplify right side
    678,923.80x = 349,478,638,250.36
  5. Step 5: Solve for x
    x = 349,478,638,250.36/678,923.80
  6. Step 6: Final answer
    x = 514,753.85

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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.