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Finding the Fourth Proportional to 573,031.80, 859,547.70 and 519,887.70

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Solution

The fourth proportional to 573,031.80, 859,547.70 and 519,887.70 is: 779,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,031.80 : 859,547.70 = 519,887.70 : x
  2. Step 2: Convert to fraction form
    573,031.80/859,547.70 = 519,887.70/x
  3. Step 3: Cross multiply
    573,031.80x = 859,547.70 × 519,887.70
  4. Step 4: Simplify right side
    573,031.80x = 446,868,276,793.29
  5. Step 5: Solve for x
    x = 446,868,276,793.29/573,031.80
  6. Step 6: Final answer
    x = 779,831.55

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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.