Home / 626,746.50-864,920.34-354,807.36

Finding the Fourth Proportional to 626,746.50, 864,920.34 and 354,807.36

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Solution

The fourth proportional to 626,746.50, 864,920.34 and 354,807.36 is: 489,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,746.50 : 864,920.34 = 354,807.36 : x
  2. Step 2: Convert to fraction form
    626,746.50/864,920.34 = 354,807.36/x
  3. Step 3: Cross multiply
    626,746.50x = 864,920.34 × 354,807.36
  4. Step 4: Simplify right side
    626,746.50x = 306,880,102,445.70
  5. Step 5: Solve for x
    x = 306,880,102,445.70/626,746.50
  6. Step 6: Final answer
    x = 489,639.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.