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Finding the Fourth Proportional to 934,768, 1,289,979.84 and 505,048.24

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Solution

The fourth proportional to 934,768, 1,289,979.84 and 505,048.24 is: 696,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,768 : 1,289,979.84 = 505,048.24 : x
  2. Step 2: Convert to fraction form
    934,768/1,289,979.84 = 505,048.24/x
  3. Step 3: Cross multiply
    934,768x = 1,289,979.84 × 505,048.24
  4. Step 4: Simplify right side
    934,768x = 651,502,047,827.48
  5. Step 5: Solve for x
    x = 651,502,047,827.48/934,768
  6. Step 6: Final answer
    x = 696,966.57

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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.