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Finding the Fourth Proportional to 611,509.59, 843,747.35 and 369,787.10

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Solution

The fourth proportional to 611,509.59, 843,747.35 and 369,787.10 is: 510,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,509.59 : 843,747.35 = 369,787.10 : x
  2. Step 2: Convert to fraction form
    611,509.59/843,747.35 = 369,787.10/x
  3. Step 3: Cross multiply
    611,509.59x = 843,747.35 × 369,787.10
  4. Step 4: Simplify right side
    611,509.59x = 312,006,879,621.51
  5. Step 5: Solve for x
    x = 312,006,879,621.51/611,509.59
  6. Step 6: Final answer
    x = 510,224.02

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Double scale
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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.