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Finding the Fourth Proportional to 524,152.10, 786,228.15 and 515,404.10

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Solution

The fourth proportional to 524,152.10, 786,228.15 and 515,404.10 is: 773,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,152.10 : 786,228.15 = 515,404.10 : x
  2. Step 2: Convert to fraction form
    524,152.10/786,228.15 = 515,404.10/x
  3. Step 3: Cross multiply
    524,152.10x = 786,228.15 × 515,404.10
  4. Step 4: Simplify right side
    524,152.10x = 405,225,212,045.42
  5. Step 5: Solve for x
    x = 405,225,212,045.42/524,152.10
  6. Step 6: Final answer
    x = 773,106.15

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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.