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Finding the Fourth Proportional to 632,888.09, 873,386.63 and 346,426.33

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Solution

The fourth proportional to 632,888.09, 873,386.63 and 346,426.33 is: 478,068.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,888.09 : 873,386.63 = 346,426.33 : x
  2. Step 2: Convert to fraction form
    632,888.09/873,386.63 = 346,426.33/x
  3. Step 3: Cross multiply
    632,888.09x = 873,386.63 × 346,426.33
  4. Step 4: Simplify right side
    632,888.09x = 302,564,118,802.90
  5. Step 5: Solve for x
    x = 302,564,118,802.90/632,888.09
  6. Step 6: Final answer
    x = 478,068.91

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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.