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Finding the Fourth Proportional to 652,041.10, 978,061.65 and 518,196.70

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Solution

The fourth proportional to 652,041.10, 978,061.65 and 518,196.70 is: 777,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,041.10 : 978,061.65 = 518,196.70 : x
  2. Step 2: Convert to fraction form
    652,041.10/978,061.65 = 518,196.70/x
  3. Step 3: Cross multiply
    652,041.10x = 978,061.65 × 518,196.70
  4. Step 4: Simplify right side
    652,041.10x = 506,828,319,426.56
  5. Step 5: Solve for x
    x = 506,828,319,426.56/652,041.10
  6. Step 6: Final answer
    x = 777,295.05

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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.