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Finding the Fourth Proportional to 524,007.70, 786,011.55 and 519,342.10

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Solution

The fourth proportional to 524,007.70, 786,011.55 and 519,342.10 is: 779,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,007.70 : 786,011.55 = 519,342.10 : x
  2. Step 2: Convert to fraction form
    524,007.70/786,011.55 = 519,342.10/x
  3. Step 3: Cross multiply
    524,007.70x = 786,011.55 × 519,342.10
  4. Step 4: Simplify right side
    524,007.70x = 408,208,889,001.26
  5. Step 5: Solve for x
    x = 408,208,889,001.26/524,007.70
  6. Step 6: Final answer
    x = 779,013.15

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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.