Home / 633,483.02-873,875.12-391,688.30

Finding the Fourth Proportional to 633,483.02, 873,875.12 and 391,688.30

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Solution

The fourth proportional to 633,483.02, 873,875.12 and 391,688.30 is: 540,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,483.02 : 873,875.12 = 391,688.30 : x
  2. Step 2: Convert to fraction form
    633,483.02/873,875.12 = 391,688.30/x
  3. Step 3: Cross multiply
    633,483.02x = 873,875.12 × 391,688.30
  4. Step 4: Simplify right side
    633,483.02x = 342,286,660,165.10
  5. Step 5: Solve for x
    x = 342,286,660,165.10/633,483.02
  6. Step 6: Final answer
    x = 540,324.92

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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.