Home / 1,230,816.80-1,698,528-679,532.96

Finding the Fourth Proportional to 1,230,816.80, 1,698,528 and 679,532.96

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Solution

The fourth proportional to 1,230,816.80, 1,698,528 and 679,532.96 is: 937,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,816.80 : 1,698,528 = 679,532.96 : x
  2. Step 2: Convert to fraction form
    1,230,816.80/1,698,528 = 679,532.96/x
  3. Step 3: Cross multiply
    1,230,816.80x = 1,698,528 × 679,532.96
  4. Step 4: Simplify right side
    1,230,816.80x = 1,154,205,759,482.88
  5. Step 5: Solve for x
    x = 1,154,205,759,482.88/1,230,816.80
  6. Step 6: Final answer
    x = 937,755.94

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Double scale
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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.