Home / 669,875.16-923,918.76-463,487.16

Finding the Fourth Proportional to 669,875.16, 923,918.76 and 463,487.16

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Solution

The fourth proportional to 669,875.16, 923,918.76 and 463,487.16 is: 639,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,875.16 : 923,918.76 = 463,487.16 : x
  2. Step 2: Convert to fraction form
    669,875.16/923,918.76 = 463,487.16/x
  3. Step 3: Cross multiply
    669,875.16x = 923,918.76 × 463,487.16
  4. Step 4: Simplify right side
    669,875.16x = 428,224,482,143.12
  5. Step 5: Solve for x
    x = 428,224,482,143.12/669,875.16
  6. Step 6: Final answer
    x = 639,260.13

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Half scale
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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.