Home / 816,585.66-1,225,127.70-417,506.76

Finding the Fourth Proportional to 816,585.66, 1,225,127.70 and 417,506.76

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Solution

The fourth proportional to 816,585.66, 1,225,127.70 and 417,506.76 is: 626,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,585.66 : 1,225,127.70 = 417,506.76 : x
  2. Step 2: Convert to fraction form
    816,585.66/1,225,127.70 = 417,506.76/x
  3. Step 3: Cross multiply
    816,585.66x = 1,225,127.70 × 417,506.76
  4. Step 4: Simplify right side
    816,585.66x = 511,499,096,613.25
  5. Step 5: Solve for x
    x = 511,499,096,613.25/816,585.66
  6. Step 6: Final answer
    x = 626,387.56

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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.