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Finding the Fourth Proportional to 623,560.01, 859,938.94 and 408,622.01

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Solution

The fourth proportional to 623,560.01, 859,938.94 and 408,622.01 is: 563,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,560.01 : 859,938.94 = 408,622.01 : x
  2. Step 2: Convert to fraction form
    623,560.01/859,938.94 = 408,622.01/x
  3. Step 3: Cross multiply
    623,560.01x = 859,938.94 × 408,622.01
  4. Step 4: Simplify right side
    623,560.01x = 351,389,978,140.07
  5. Step 5: Solve for x
    x = 351,389,978,140.07/623,560.01
  6. Step 6: Final answer
    x = 563,522.31

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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.