Home / 405,031.40-607,547.10-194,618.60

Finding the Fourth Proportional to 405,031.40, 607,547.10 and 194,618.60

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Solution

The fourth proportional to 405,031.40, 607,547.10 and 194,618.60 is: 291,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,031.40 : 607,547.10 = 194,618.60 : x
  2. Step 2: Convert to fraction form
    405,031.40/607,547.10 = 194,618.60/x
  3. Step 3: Cross multiply
    405,031.40x = 607,547.10 × 194,618.60
  4. Step 4: Simplify right side
    405,031.40x = 118,239,966,036.06
  5. Step 5: Solve for x
    x = 118,239,966,036.06/405,031.40
  6. Step 6: Final answer
    x = 291,927.90

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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.