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Finding the Fourth Proportional to 657,079.30, 920,533.10 and 657,079.30

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Solution

The fourth proportional to 657,079.30, 920,533.10 and 657,079.30 is: 920,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,079.30 : 920,533.10 = 657,079.30 : x
  2. Step 2: Convert to fraction form
    657,079.30/920,533.10 = 657,079.30/x
  3. Step 3: Cross multiply
    657,079.30x = 920,533.10 × 657,079.30
  4. Step 4: Simplify right side
    657,079.30x = 604,863,244,974.83
  5. Step 5: Solve for x
    x = 604,863,244,974.83/657,079.30
  6. Step 6: Final answer
    x = 920,533.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.