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Finding the Fourth Proportional to 572,343.57, 789,973.47 and 343,036.62

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Solution

The fourth proportional to 572,343.57, 789,973.47 and 343,036.62 is: 473,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,343.57 : 789,973.47 = 343,036.62 : x
  2. Step 2: Convert to fraction form
    572,343.57/789,973.47 = 343,036.62/x
  3. Step 3: Cross multiply
    572,343.57x = 789,973.47 × 343,036.62
  4. Step 4: Simplify right side
    572,343.57x = 270,989,829,038.47
  5. Step 5: Solve for x
    x = 270,989,829,038.47/572,343.57
  6. Step 6: Final answer
    x = 473,474.05

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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.