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Finding the Fourth Proportional to 898,569.64, 1,240,018.50 and 496,153

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Solution

The fourth proportional to 898,569.64, 1,240,018.50 and 496,153 is: 684,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,569.64 : 1,240,018.50 = 496,153 : x
  2. Step 2: Convert to fraction form
    898,569.64/1,240,018.50 = 496,153/x
  3. Step 3: Cross multiply
    898,569.64x = 1,240,018.50 × 496,153
  4. Step 4: Simplify right side
    898,569.64x = 615,238,898,830.50
  5. Step 5: Solve for x
    x = 615,238,898,830.50/898,569.64
  6. Step 6: Final answer
    x = 684,686.94

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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.