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Finding the Fourth Proportional to 554,643.70, 831,965.55 and 532,870.90

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Solution

The fourth proportional to 554,643.70, 831,965.55 and 532,870.90 is: 799,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,643.70 : 831,965.55 = 532,870.90 : x
  2. Step 2: Convert to fraction form
    554,643.70/831,965.55 = 532,870.90/x
  3. Step 3: Cross multiply
    554,643.70x = 831,965.55 × 532,870.90
  4. Step 4: Simplify right side
    554,643.70x = 443,330,231,397.50
  5. Step 5: Solve for x
    x = 443,330,231,397.50/554,643.70
  6. Step 6: Final answer
    x = 799,306.35

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Double scale
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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.