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Finding the Fourth Proportional to 551,860.67, 829,384.29 and 513,547.45

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Solution

The fourth proportional to 551,860.67, 829,384.29 and 513,547.45 is: 771,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,860.67 : 829,384.29 = 513,547.45 : x
  2. Step 2: Convert to fraction form
    551,860.67/829,384.29 = 513,547.45/x
  3. Step 3: Cross multiply
    551,860.67x = 829,384.29 × 513,547.45
  4. Step 4: Simplify right side
    551,860.67x = 425,928,183,200.30
  5. Step 5: Solve for x
    x = 425,928,183,200.30/551,860.67
  6. Step 6: Final answer
    x = 771,803.85

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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.