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Finding the Fourth Proportional to 518,897.32, 716,047.43 and 301,089.13

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Solution

The fourth proportional to 518,897.32, 716,047.43 and 301,089.13 is: 415,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,897.32 : 716,047.43 = 301,089.13 : x
  2. Step 2: Convert to fraction form
    518,897.32/716,047.43 = 301,089.13/x
  3. Step 3: Cross multiply
    518,897.32x = 716,047.43 × 301,089.13
  4. Step 4: Simplify right side
    518,897.32x = 215,594,094,441.87
  5. Step 5: Solve for x
    x = 215,594,094,441.87/518,897.32
  6. Step 6: Final answer
    x = 415,485.08

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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.