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Finding the Fourth Proportional to 353,875.40, 530,813.10 and 348,043.40

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Solution

The fourth proportional to 353,875.40, 530,813.10 and 348,043.40 is: 522,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,875.40 : 530,813.10 = 348,043.40 : x
  2. Step 2: Convert to fraction form
    353,875.40/530,813.10 = 348,043.40/x
  3. Step 3: Cross multiply
    353,875.40x = 530,813.10 × 348,043.40
  4. Step 4: Simplify right side
    353,875.40x = 184,745,996,088.54
  5. Step 5: Solve for x
    x = 184,745,996,088.54/353,875.40
  6. Step 6: Final answer
    x = 522,065.10

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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.