Home / 535,459.21-738,929.39-290,443.35

Finding the Fourth Proportional to 535,459.21, 738,929.39 and 290,443.35

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Solution

The fourth proportional to 535,459.21, 738,929.39 and 290,443.35 is: 400,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,459.21 : 738,929.39 = 290,443.35 : x
  2. Step 2: Convert to fraction form
    535,459.21/738,929.39 = 290,443.35/x
  3. Step 3: Cross multiply
    535,459.21x = 738,929.39 × 290,443.35
  4. Step 4: Simplify right side
    535,459.21x = 214,617,127,445.06
  5. Step 5: Solve for x
    x = 214,617,127,445.06/535,459.21
  6. Step 6: Final answer
    x = 400,809.48

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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.