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Finding the Fourth Proportional to 858,735.52, 1,185,008.76 and 476,737.71

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Solution

The fourth proportional to 858,735.52, 1,185,008.76 and 476,737.71 is: 657,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,735.52 : 1,185,008.76 = 476,737.71 : x
  2. Step 2: Convert to fraction form
    858,735.52/1,185,008.76 = 476,737.71/x
  3. Step 3: Cross multiply
    858,735.52x = 1,185,008.76 × 476,737.71
  4. Step 4: Simplify right side
    858,735.52x = 564,938,362,572.34
  5. Step 5: Solve for x
    x = 564,938,362,572.34/858,735.52
  6. Step 6: Final answer
    x = 657,872.36

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Double scale
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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.