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Finding the Fourth Proportional to 282,666.60, 423,999.90 and 170,692.20

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Solution

The fourth proportional to 282,666.60, 423,999.90 and 170,692.20 is: 256,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,666.60 : 423,999.90 = 170,692.20 : x
  2. Step 2: Convert to fraction form
    282,666.60/423,999.90 = 170,692.20/x
  3. Step 3: Cross multiply
    282,666.60x = 423,999.90 × 170,692.20
  4. Step 4: Simplify right side
    282,666.60x = 72,373,475,730.78
  5. Step 5: Solve for x
    x = 72,373,475,730.78/282,666.60
  6. Step 6: Final answer
    x = 256,038.30

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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.