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Finding the Fourth Proportional to 904,709.73, 1,248,411.05 and 522,728.31

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Solution

The fourth proportional to 904,709.73, 1,248,411.05 and 522,728.31 is: 721,314.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,709.73 : 1,248,411.05 = 522,728.31 : x
  2. Step 2: Convert to fraction form
    904,709.73/1,248,411.05 = 522,728.31/x
  3. Step 3: Cross multiply
    904,709.73x = 1,248,411.05 × 522,728.31
  4. Step 4: Simplify right side
    904,709.73x = 652,579,792,109.77
  5. Step 5: Solve for x
    x = 652,579,792,109.77/904,709.73
  6. Step 6: Final answer
    x = 721,314.00

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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.