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Finding the Fourth Proportional to 583,385.40, 874,970.10 and 162,574.20

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Solution

The fourth proportional to 583,385.40, 874,970.10 and 162,574.20 is: 243,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,385.40 : 874,970.10 = 162,574.20 : x
  2. Step 2: Convert to fraction form
    583,385.40/874,970.10 = 162,574.20/x
  3. Step 3: Cross multiply
    583,385.40x = 874,970.10 × 162,574.20
  4. Step 4: Simplify right side
    583,385.40x = 142,247,564,031.42
  5. Step 5: Solve for x
    x = 142,247,564,031.42/583,385.40
  6. Step 6: Final answer
    x = 243,831.20

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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.