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Finding the Fourth Proportional to 713,001.69, 1,068,782.45 and 446,948.69

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Solution

The fourth proportional to 713,001.69, 1,068,782.45 and 446,948.69 is: 669,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,001.69 : 1,068,782.45 = 446,948.69 : x
  2. Step 2: Convert to fraction form
    713,001.69/1,068,782.45 = 446,948.69/x
  3. Step 3: Cross multiply
    713,001.69x = 1,068,782.45 × 446,948.69
  4. Step 4: Simplify right side
    713,001.69x = 477,690,908,343.84
  5. Step 5: Solve for x
    x = 477,690,908,343.84/713,001.69
  6. Step 6: Final answer
    x = 669,971.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.