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Finding the Fourth Proportional to 418,983.87, 578,210.76 and 237,703.44

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Solution

The fourth proportional to 418,983.87, 578,210.76 and 237,703.44 is: 328,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,983.87 : 578,210.76 = 237,703.44 : x
  2. Step 2: Convert to fraction form
    418,983.87/578,210.76 = 237,703.44/x
  3. Step 3: Cross multiply
    418,983.87x = 578,210.76 × 237,703.44
  4. Step 4: Simplify right side
    418,983.87x = 137,442,686,697.01
  5. Step 5: Solve for x
    x = 137,442,686,697.01/418,983.87
  6. Step 6: Final answer
    x = 328,038.13

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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.