Home / 705,685.39-973,840.59-383,398.13

Finding the Fourth Proportional to 705,685.39, 973,840.59 and 383,398.13

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Solution

The fourth proportional to 705,685.39, 973,840.59 and 383,398.13 is: 529,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,685.39 : 973,840.59 = 383,398.13 : x
  2. Step 2: Convert to fraction form
    705,685.39/973,840.59 = 383,398.13/x
  3. Step 3: Cross multiply
    705,685.39x = 973,840.59 × 383,398.13
  4. Step 4: Simplify right side
    705,685.39x = 373,368,663,558.70
  5. Step 5: Solve for x
    x = 373,368,663,558.70/705,685.39
  6. Step 6: Final answer
    x = 529,086.57

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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.