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Finding the Fourth Proportional to 573,172.40, 859,931.40 and 307,060.40

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Solution

The fourth proportional to 573,172.40, 859,931.40 and 307,060.40 is: 460,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,172.40 : 859,931.40 = 307,060.40 : x
  2. Step 2: Convert to fraction form
    573,172.40/859,931.40 = 307,060.40/x
  3. Step 3: Cross multiply
    573,172.40x = 859,931.40 × 307,060.40
  4. Step 4: Simplify right side
    573,172.40x = 264,050,879,656.56
  5. Step 5: Solve for x
    x = 264,050,879,656.56/573,172.40
  6. Step 6: Final answer
    x = 460,683.17

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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.