Home / 876,345.80-1,314,518.70-577,164.20

Finding the Fourth Proportional to 876,345.80, 1,314,518.70 and 577,164.20

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Solution

The fourth proportional to 876,345.80, 1,314,518.70 and 577,164.20 is: 865,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,345.80 : 1,314,518.70 = 577,164.20 : x
  2. Step 2: Convert to fraction form
    876,345.80/1,314,518.70 = 577,164.20/x
  3. Step 3: Cross multiply
    876,345.80x = 1,314,518.70 × 577,164.20
  4. Step 4: Simplify right side
    876,345.80x = 758,693,133,870.54
  5. Step 5: Solve for x
    x = 758,693,133,870.54/876,345.80
  6. Step 6: Final answer
    x = 865,746.30

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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.