Home / 440,079.78-607,312.12-249,130.10

Finding the Fourth Proportional to 440,079.78, 607,312.12 and 249,130.10

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Solution

The fourth proportional to 440,079.78, 607,312.12 and 249,130.10 is: 343,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,079.78 : 607,312.12 = 249,130.10 : x
  2. Step 2: Convert to fraction form
    440,079.78/607,312.12 = 249,130.10/x
  3. Step 3: Cross multiply
    440,079.78x = 607,312.12 × 249,130.10
  4. Step 4: Simplify right side
    440,079.78x = 151,299,729,186.81
  5. Step 5: Solve for x
    x = 151,299,729,186.81/440,079.78
  6. Step 6: Final answer
    x = 343,800.68

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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.