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Finding the Fourth Proportional to 570,526.25, 787,379.04 and 315,877.46

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Solution

The fourth proportional to 570,526.25, 787,379.04 and 315,877.46 is: 435,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,526.25 : 787,379.04 = 315,877.46 : x
  2. Step 2: Convert to fraction form
    570,526.25/787,379.04 = 315,877.46/x
  3. Step 3: Cross multiply
    570,526.25x = 787,379.04 × 315,877.46
  4. Step 4: Simplify right side
    570,526.25x = 248,715,287,275.54
  5. Step 5: Solve for x
    x = 248,715,287,275.54/570,526.25
  6. Step 6: Final answer
    x = 435,940.13

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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.