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Finding the Fourth Proportional to 719,550.04, 993,095.74 and 417,919

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Solution

The fourth proportional to 719,550.04, 993,095.74 and 417,919 is: 576,795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,550.04 : 993,095.74 = 417,919 : x
  2. Step 2: Convert to fraction form
    719,550.04/993,095.74 = 417,919/x
  3. Step 3: Cross multiply
    719,550.04x = 993,095.74 × 417,919
  4. Step 4: Simplify right side
    719,550.04x = 415,033,578,565.06
  5. Step 5: Solve for x
    x = 415,033,578,565.06/719,550.04
  6. Step 6: Final answer
    x = 576,795.99

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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.