Home / 671,111.19-926,133.56-369,305.19

Finding the Fourth Proportional to 671,111.19, 926,133.56 and 369,305.19

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Solution

The fourth proportional to 671,111.19, 926,133.56 and 369,305.19 is: 509,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,111.19 : 926,133.56 = 369,305.19 : x
  2. Step 2: Convert to fraction form
    671,111.19/926,133.56 = 369,305.19/x
  3. Step 3: Cross multiply
    671,111.19x = 926,133.56 × 369,305.19
  4. Step 4: Simplify right side
    671,111.19x = 342,025,928,494.65
  5. Step 5: Solve for x
    x = 342,025,928,494.65/671,111.19
  6. Step 6: Final answer
    x = 509,641.22

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Half scale
Find fourth proportional to 1,342,222.38, 1,852,267.11 and 738,610.38
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.