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Finding the Fourth Proportional to 653,386, 898,873.32 and 625,392.40

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Solution

The fourth proportional to 653,386, 898,873.32 and 625,392.40 is: 860,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,386 : 898,873.32 = 625,392.40 : x
  2. Step 2: Convert to fraction form
    653,386/898,873.32 = 625,392.40/x
  3. Step 3: Cross multiply
    653,386x = 898,873.32 × 625,392.40
  4. Step 4: Simplify right side
    653,386x = 562,148,542,890.77
  5. Step 5: Solve for x
    x = 562,148,542,890.77/653,386
  6. Step 6: Final answer
    x = 860,362.09

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1.5x scale

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.