Home / 678,941.60-936,955.04-373,037.06

Finding the Fourth Proportional to 678,941.60, 936,955.04 and 373,037.06

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Solution

The fourth proportional to 678,941.60, 936,955.04 and 373,037.06 is: 514,799.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,941.60 : 936,955.04 = 373,037.06 : x
  2. Step 2: Convert to fraction form
    678,941.60/936,955.04 = 373,037.06/x
  3. Step 3: Cross multiply
    678,941.60x = 936,955.04 × 373,037.06
  4. Step 4: Simplify right side
    678,941.60x = 349,518,946,923.82
  5. Step 5: Solve for x
    x = 349,518,946,923.82/678,941.60
  6. Step 6: Final answer
    x = 514,799.73

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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.