Home / 419,119.08-578,368.29-237,820.20

Finding the Fourth Proportional to 419,119.08, 578,368.29 and 237,820.20

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Solution

The fourth proportional to 419,119.08, 578,368.29 and 237,820.20 is: 328,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,119.08 : 578,368.29 = 237,820.20 : x
  2. Step 2: Convert to fraction form
    419,119.08/578,368.29 = 237,820.20/x
  3. Step 3: Cross multiply
    419,119.08x = 578,368.29 × 237,820.20
  4. Step 4: Simplify right side
    419,119.08x = 137,547,662,401.46
  5. Step 5: Solve for x
    x = 137,547,662,401.46/419,119.08
  6. Step 6: Final answer
    x = 328,182.77

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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.