Home / 705,653.19-973,731.13-399,668.51

Finding the Fourth Proportional to 705,653.19, 973,731.13 and 399,668.51

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Solution

The fourth proportional to 705,653.19, 973,731.13 and 399,668.51 is: 551,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,653.19 : 973,731.13 = 399,668.51 : x
  2. Step 2: Convert to fraction form
    705,653.19/973,731.13 = 399,668.51/x
  3. Step 3: Cross multiply
    705,653.19x = 973,731.13 × 399,668.51
  4. Step 4: Simplify right side
    705,653.19x = 389,169,671,302.87
  5. Step 5: Solve for x
    x = 389,169,671,302.87/705,653.19
  6. Step 6: Final answer
    x = 551,502.74

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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.