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Finding the Fourth Proportional to 669,561.58, 924,142.10 and 440,140.06

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Solution

The fourth proportional to 669,561.58, 924,142.10 and 440,140.06 is: 607,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,561.58 : 924,142.10 = 440,140.06 : x
  2. Step 2: Convert to fraction form
    669,561.58/924,142.10 = 440,140.06/x
  3. Step 3: Cross multiply
    669,561.58x = 924,142.10 × 440,140.06
  4. Step 4: Simplify right side
    669,561.58x = 406,751,962,010.69
  5. Step 5: Solve for x
    x = 406,751,962,010.69/669,561.58
  6. Step 6: Final answer
    x = 607,490.00

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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.