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Finding the Fourth Proportional to 822,240.32, 1,134,700.08 and 459,684.32

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Solution

The fourth proportional to 822,240.32, 1,134,700.08 and 459,684.32 is: 634,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,240.32 : 1,134,700.08 = 459,684.32 : x
  2. Step 2: Convert to fraction form
    822,240.32/1,134,700.08 = 459,684.32/x
  3. Step 3: Cross multiply
    822,240.32x = 1,134,700.08 × 459,684.32
  4. Step 4: Simplify right side
    822,240.32x = 521,603,834,678.75
  5. Step 5: Solve for x
    x = 521,603,834,678.75/822,240.32
  6. Step 6: Final answer
    x = 634,369.08

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.