Home / 849,686.06-1,172,429.55-487,043.18

Finding the Fourth Proportional to 849,686.06, 1,172,429.55 and 487,043.18

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Solution

The fourth proportional to 849,686.06, 1,172,429.55 and 487,043.18 is: 672,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,686.06 : 1,172,429.55 = 487,043.18 : x
  2. Step 2: Convert to fraction form
    849,686.06/1,172,429.55 = 487,043.18/x
  3. Step 3: Cross multiply
    849,686.06x = 1,172,429.55 × 487,043.18
  4. Step 4: Simplify right side
    849,686.06x = 571,023,816,357.97
  5. Step 5: Solve for x
    x = 571,023,816,357.97/849,686.06
  6. Step 6: Final answer
    x = 672,040.94

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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.