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Finding the Fourth Proportional to 572,712.64, 858,952.32 and 217,602.16

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Solution

The fourth proportional to 572,712.64, 858,952.32 and 217,602.16 is: 326,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,712.64 : 858,952.32 = 217,602.16 : x
  2. Step 2: Convert to fraction form
    572,712.64/858,952.32 = 217,602.16/x
  3. Step 3: Cross multiply
    572,712.64x = 858,952.32 × 217,602.16
  4. Step 4: Simplify right side
    572,712.64x = 186,909,880,169.01
  5. Step 5: Solve for x
    x = 186,909,880,169.01/572,712.64
  6. Step 6: Final answer
    x = 326,358.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.