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Finding the Fourth Proportional to 634,877.65, 876,088.02 and 348,416.19

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Solution

The fourth proportional to 634,877.65, 876,088.02 and 348,416.19 is: 480,790.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,877.65 : 876,088.02 = 348,416.19 : x
  2. Step 2: Convert to fraction form
    634,877.65/876,088.02 = 348,416.19/x
  3. Step 3: Cross multiply
    634,877.65x = 876,088.02 × 348,416.19
  4. Step 4: Simplify right side
    634,877.65x = 305,243,246,747.71
  5. Step 5: Solve for x
    x = 305,243,246,747.71/634,877.65
  6. Step 6: Final answer
    x = 480,790.67

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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.