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Finding the Fourth Proportional to 523,330.47, 785,153.34 and 163,486.77

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Solution

The fourth proportional to 523,330.47, 785,153.34 and 163,486.77 is: 245,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,330.47 : 785,153.34 = 163,486.77 : x
  2. Step 2: Convert to fraction form
    523,330.47/785,153.34 = 163,486.77/x
  3. Step 3: Cross multiply
    523,330.47x = 785,153.34 × 163,486.77
  4. Step 4: Simplify right side
    523,330.47x = 128,362,183,511.31
  5. Step 5: Solve for x
    x = 128,362,183,511.31/523,330.47
  6. Step 6: Final answer
    x = 245,279.40

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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.