Home / 669,564.48-924,017.03-393,941.57

Finding the Fourth Proportional to 669,564.48, 924,017.03 and 393,941.57

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Solution

The fourth proportional to 669,564.48, 924,017.03 and 393,941.57 is: 543,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,564.48 : 924,017.03 = 393,941.57 : x
  2. Step 2: Convert to fraction form
    669,564.48/924,017.03 = 393,941.57/x
  3. Step 3: Cross multiply
    669,564.48x = 924,017.03 × 393,941.57
  4. Step 4: Simplify right side
    669,564.48x = 364,008,712,915.14
  5. Step 5: Solve for x
    x = 364,008,712,915.14/669,564.48
  6. Step 6: Final answer
    x = 543,649.98

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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.