Home / 724,662.40-1,085,681.40-619,686.40

Finding the Fourth Proportional to 724,662.40, 1,085,681.40 and 619,686.40

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Solution

The fourth proportional to 724,662.40, 1,085,681.40 and 619,686.40 is: 928,407.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,662.40 : 1,085,681.40 = 619,686.40 : x
  2. Step 2: Convert to fraction form
    724,662.40/1,085,681.40 = 619,686.40/x
  3. Step 3: Cross multiply
    724,662.40x = 1,085,681.40 × 619,686.40
  4. Step 4: Simplify right side
    724,662.40x = 672,781,998,312.96
  5. Step 5: Solve for x
    x = 672,781,998,312.96/724,662.40
  6. Step 6: Final answer
    x = 928,407.49

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Double scale
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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.