Home / 780,037.65-1,170,056.48-661,939.65

Finding the Fourth Proportional to 780,037.65, 1,170,056.48 and 661,939.65

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Solution

The fourth proportional to 780,037.65, 1,170,056.48 and 661,939.65 is: 992,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,037.65 : 1,170,056.48 = 661,939.65 : x
  2. Step 2: Convert to fraction form
    780,037.65/1,170,056.48 = 661,939.65/x
  3. Step 3: Cross multiply
    780,037.65x = 1,170,056.48 × 661,939.65
  4. Step 4: Simplify right side
    780,037.65x = 774,506,773,541.73
  5. Step 5: Solve for x
    x = 774,506,773,541.73/780,037.65
  6. Step 6: Final answer
    x = 992,909.48

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.