Home / 913,535.10-1,260,646.28-505,637.73

Finding the Fourth Proportional to 913,535.10, 1,260,646.28 and 505,637.73

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Solution

The fourth proportional to 913,535.10, 1,260,646.28 and 505,637.73 is: 697,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,535.10 : 1,260,646.28 = 505,637.73 : x
  2. Step 2: Convert to fraction form
    913,535.10/1,260,646.28 = 505,637.73/x
  3. Step 3: Cross multiply
    913,535.10x = 1,260,646.28 × 505,637.73
  4. Step 4: Simplify right side
    913,535.10x = 637,430,320,823.96
  5. Step 5: Solve for x
    x = 637,430,320,823.96/913,535.10
  6. Step 6: Final answer
    x = 697,762.27

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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.