Home / 823,509.65-1,137,152.56-518,095.10

Finding the Fourth Proportional to 823,509.65, 1,137,152.56 and 518,095.10

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Solution

The fourth proportional to 823,509.65, 1,137,152.56 and 518,095.10 is: 715,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,509.65 : 1,137,152.56 = 518,095.10 : x
  2. Step 2: Convert to fraction form
    823,509.65/1,137,152.56 = 518,095.10/x
  3. Step 3: Cross multiply
    823,509.65x = 1,137,152.56 × 518,095.10
  4. Step 4: Simplify right side
    823,509.65x = 589,153,169,288.46
  5. Step 5: Solve for x
    x = 589,153,169,288.46/823,509.65
  6. Step 6: Final answer
    x = 715,417.44

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Double scale
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Similar ratio
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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.