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Finding the Fourth Proportional to 346,000.78, 519,001.16 and 346,000.78

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Solution

The fourth proportional to 346,000.78, 519,001.16 and 346,000.78 is: 519,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,000.78 : 519,001.16 = 346,000.78 : x
  2. Step 2: Convert to fraction form
    346,000.78/519,001.16 = 346,000.78/x
  3. Step 3: Cross multiply
    346,000.78x = 519,001.16 × 346,000.78
  4. Step 4: Simplify right side
    346,000.78x = 179,574,804,450.90
  5. Step 5: Solve for x
    x = 179,574,804,450.90/346,000.78
  6. Step 6: Final answer
    x = 519,001.16

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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.