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Finding the Fourth Proportional to 553,385.61, 831,184.65 and 535,226.22

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Solution

The fourth proportional to 553,385.61, 831,184.65 and 535,226.22 is: 803,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,385.61 : 831,184.65 = 535,226.22 : x
  2. Step 2: Convert to fraction form
    553,385.61/831,184.65 = 535,226.22/x
  3. Step 3: Cross multiply
    553,385.61x = 831,184.65 × 535,226.22
  4. Step 4: Simplify right side
    553,385.61x = 444,871,818,341.52
  5. Step 5: Solve for x
    x = 444,871,818,341.52/553,385.61
  6. Step 6: Final answer
    x = 803,909.26

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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.