Home / 705,030.12-972,838.89-403,165.80

Finding the Fourth Proportional to 705,030.12, 972,838.89 and 403,165.80

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Solution

The fourth proportional to 705,030.12, 972,838.89 and 403,165.80 is: 556,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,030.12 : 972,838.89 = 403,165.80 : x
  2. Step 2: Convert to fraction form
    705,030.12/972,838.89 = 403,165.80/x
  3. Step 3: Cross multiply
    705,030.12x = 972,838.89 × 403,165.80
  4. Step 4: Simplify right side
    705,030.12x = 392,215,369,357.96
  5. Step 5: Solve for x
    x = 392,215,369,357.96/705,030.12
  6. Step 6: Final answer
    x = 556,310.09

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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.