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Finding the Fourth Proportional to 717,915.33, 990,032.36 and 472,461.03

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Solution

The fourth proportional to 717,915.33, 990,032.36 and 472,461.03 is: 651,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,915.33 : 990,032.36 = 472,461.03 : x
  2. Step 2: Convert to fraction form
    717,915.33/990,032.36 = 472,461.03/x
  3. Step 3: Cross multiply
    717,915.33x = 990,032.36 × 472,461.03
  4. Step 4: Simplify right side
    717,915.33x = 467,751,706,176.63
  5. Step 5: Solve for x
    x = 467,751,706,176.63/717,915.33
  6. Step 6: Final answer
    x = 651,541.60

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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.