Home / 839,923.40-1,159,088.46-477,318.80

Finding the Fourth Proportional to 839,923.40, 1,159,088.46 and 477,318.80

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Solution

The fourth proportional to 839,923.40, 1,159,088.46 and 477,318.80 is: 658,696.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,923.40 : 1,159,088.46 = 477,318.80 : x
  2. Step 2: Convert to fraction form
    839,923.40/1,159,088.46 = 477,318.80/x
  3. Step 3: Cross multiply
    839,923.40x = 1,159,088.46 × 477,318.80
  4. Step 4: Simplify right side
    839,923.40x = 553,254,712,821.05
  5. Step 5: Solve for x
    x = 553,254,712,821.05/839,923.40
  6. Step 6: Final answer
    x = 658,696.63

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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.