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Finding the Fourth Proportional to 657,068.01, 906,582.51 and 384,989.72

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Solution

The fourth proportional to 657,068.01, 906,582.51 and 384,989.72 is: 531,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,068.01 : 906,582.51 = 384,989.72 : x
  2. Step 2: Convert to fraction form
    657,068.01/906,582.51 = 384,989.72/x
  3. Step 3: Cross multiply
    657,068.01x = 906,582.51 × 384,989.72
  4. Step 4: Simplify right side
    657,068.01x = 349,024,947,023.31
  5. Step 5: Solve for x
    x = 349,024,947,023.31/657,068.01
  6. Step 6: Final answer
    x = 531,185.42

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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.