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Finding the Fourth Proportional to 572,533.40, 858,800.10 and 289,098.20

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Solution

The fourth proportional to 572,533.40, 858,800.10 and 289,098.20 is: 433,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,533.40 : 858,800.10 = 289,098.20 : x
  2. Step 2: Convert to fraction form
    572,533.40/858,800.10 = 289,098.20/x
  3. Step 3: Cross multiply
    572,533.40x = 858,800.10 × 289,098.20
  4. Step 4: Simplify right side
    572,533.40x = 248,277,563,069.82
  5. Step 5: Solve for x
    x = 248,277,563,069.82/572,533.40
  6. Step 6: Final answer
    x = 433,647.30

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Half scale
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Double scale
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Similar ratio
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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.