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Finding the Fourth Proportional to 624,010.70, 936,016.05 and 619,345.10

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Solution

The fourth proportional to 624,010.70, 936,016.05 and 619,345.10 is: 929,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,010.70 : 936,016.05 = 619,345.10 : x
  2. Step 2: Convert to fraction form
    624,010.70/936,016.05 = 619,345.10/x
  3. Step 3: Cross multiply
    624,010.70x = 936,016.05 × 619,345.10
  4. Step 4: Simplify right side
    624,010.70x = 579,716,954,088.86
  5. Step 5: Solve for x
    x = 579,716,954,088.86/624,010.70
  6. Step 6: Final answer
    x = 929,017.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.