Home / 857,030.08-1,182,786.14-489,562.21

Finding the Fourth Proportional to 857,030.08, 1,182,786.14 and 489,562.21

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Solution

The fourth proportional to 857,030.08, 1,182,786.14 and 489,562.21 is: 675,644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,030.08 : 1,182,786.14 = 489,562.21 : x
  2. Step 2: Convert to fraction form
    857,030.08/1,182,786.14 = 489,562.21/x
  3. Step 3: Cross multiply
    857,030.08x = 1,182,786.14 × 489,562.21
  4. Step 4: Simplify right side
    857,030.08x = 579,047,396,655.77
  5. Step 5: Solve for x
    x = 579,047,396,655.77/857,030.08
  6. Step 6: Final answer
    x = 675,644.19

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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.