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Finding the Fourth Proportional to 459,509.04, 634,025.16 and 278,185.68

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Solution

The fourth proportional to 459,509.04, 634,025.16 and 278,185.68 is: 383,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,509.04 : 634,025.16 = 278,185.68 : x
  2. Step 2: Convert to fraction form
    459,509.04/634,025.16 = 278,185.68/x
  3. Step 3: Cross multiply
    459,509.04x = 634,025.16 × 278,185.68
  4. Step 4: Simplify right side
    459,509.04x = 176,376,720,271.71
  5. Step 5: Solve for x
    x = 176,376,720,271.71/459,509.04
  6. Step 6: Final answer
    x = 383,837.32

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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.