Home / 705,140.56-973,088.40-382,844.13

Finding the Fourth Proportional to 705,140.56, 973,088.40 and 382,844.13

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Solution

The fourth proportional to 705,140.56, 973,088.40 and 382,844.13 is: 528,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,140.56 : 973,088.40 = 382,844.13 : x
  2. Step 2: Convert to fraction form
    705,140.56/973,088.40 = 382,844.13/x
  3. Step 3: Cross multiply
    705,140.56x = 973,088.40 × 382,844.13
  4. Step 4: Simplify right side
    705,140.56x = 372,541,181,911.09
  5. Step 5: Solve for x
    x = 372,541,181,911.09/705,140.56
  6. Step 6: Final answer
    x = 528,321.87

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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.