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Finding the Fourth Proportional to 707,547.48, 976,366.26 and 401,630.04

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Solution

The fourth proportional to 707,547.48, 976,366.26 and 401,630.04 is: 554,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,547.48 : 976,366.26 = 401,630.04 : x
  2. Step 2: Convert to fraction form
    707,547.48/976,366.26 = 401,630.04/x
  3. Step 3: Cross multiply
    707,547.48x = 976,366.26 × 401,630.04
  4. Step 4: Simplify right side
    707,547.48x = 392,138,020,058.45
  5. Step 5: Solve for x
    x = 392,138,020,058.45/707,547.48
  6. Step 6: Final answer
    x = 554,221.49

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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.