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Finding the Fourth Proportional to 910,683.60, 1,365,897 and 572,693.80

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Solution

The fourth proportional to 910,683.60, 1,365,897 and 572,693.80 is: 858,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,683.60 : 1,365,897 = 572,693.80 : x
  2. Step 2: Convert to fraction form
    910,683.60/1,365,897 = 572,693.80/x
  3. Step 3: Cross multiply
    910,683.60x = 1,365,897 × 572,693.80
  4. Step 4: Simplify right side
    910,683.60x = 782,240,743,338.60
  5. Step 5: Solve for x
    x = 782,240,743,338.60/910,683.60
  6. Step 6: Final answer
    x = 858,959.95

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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.