Home / 623,998.16-861,043.40-352,050.18

Finding the Fourth Proportional to 623,998.16, 861,043.40 and 352,050.18

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Solution

The fourth proportional to 623,998.16, 861,043.40 and 352,050.18 is: 485,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,998.16 : 861,043.40 = 352,050.18 : x
  2. Step 2: Convert to fraction form
    623,998.16/861,043.40 = 352,050.18/x
  3. Step 3: Cross multiply
    623,998.16x = 861,043.40 × 352,050.18
  4. Step 4: Simplify right side
    623,998.16x = 303,130,483,957.81
  5. Step 5: Solve for x
    x = 303,130,483,957.81/623,998.16
  6. Step 6: Final answer
    x = 485,787.46

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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.