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Finding the Fourth Proportional to 623,509.65, 933,952.28 and 518,533.65

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Solution

The fourth proportional to 623,509.65, 933,952.28 and 518,533.65 is: 776,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,509.65 : 933,952.28 = 518,533.65 : x
  2. Step 2: Convert to fraction form
    623,509.65/933,952.28 = 518,533.65/x
  3. Step 3: Cross multiply
    623,509.65x = 933,952.28 × 518,533.65
  4. Step 4: Simplify right side
    623,509.65x = 484,285,682,081.55
  5. Step 5: Solve for x
    x = 484,285,682,081.55/623,509.65
  6. Step 6: Final answer
    x = 776,709.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.