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Finding the Fourth Proportional to 570,071.89, 785,740.43 and 432,205.16

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Solution

The fourth proportional to 570,071.89, 785,740.43 and 432,205.16 is: 595,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,071.89 : 785,740.43 = 432,205.16 : x
  2. Step 2: Convert to fraction form
    570,071.89/785,740.43 = 432,205.16/x
  3. Step 3: Cross multiply
    570,071.89x = 785,740.43 × 432,205.16
  4. Step 4: Simplify right side
    570,071.89x = 339,601,070,943.17
  5. Step 5: Solve for x
    x = 339,601,070,943.17/570,071.89
  6. Step 6: Final answer
    x = 595,716.22

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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.