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Finding the Fourth Proportional to 692,421.67, 955,701.34 and 406,034.02

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Solution

The fourth proportional to 692,421.67, 955,701.34 and 406,034.02 is: 560,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,421.67 : 955,701.34 = 406,034.02 : x
  2. Step 2: Convert to fraction form
    692,421.67/955,701.34 = 406,034.02/x
  3. Step 3: Cross multiply
    692,421.67x = 955,701.34 × 406,034.02
  4. Step 4: Simplify right side
    692,421.67x = 388,047,258,136.60
  5. Step 5: Solve for x
    x = 388,047,258,136.60/692,421.67
  6. Step 6: Final answer
    x = 560,420.44

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1.5x scale

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.