Home / 819,701.40-1,131,185.70-457,125.66

Finding the Fourth Proportional to 819,701.40, 1,131,185.70 and 457,125.66

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Solution

The fourth proportional to 819,701.40, 1,131,185.70 and 457,125.66 is: 630,832.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,701.40 : 1,131,185.70 = 457,125.66 : x
  2. Step 2: Convert to fraction form
    819,701.40/1,131,185.70 = 457,125.66/x
  3. Step 3: Cross multiply
    819,701.40x = 1,131,185.70 × 457,125.66
  4. Step 4: Simplify right side
    819,701.40x = 517,094,009,695.06
  5. Step 5: Solve for x
    x = 517,094,009,695.06/819,701.40
  6. Step 6: Final answer
    x = 630,832.17

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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.