Home / 985,142.15-1,477,253.93-511,700.39

Finding the Fourth Proportional to 985,142.15, 1,477,253.93 and 511,700.39

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Solution

The fourth proportional to 985,142.15, 1,477,253.93 and 511,700.39 is: 767,312.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,142.15 : 1,477,253.93 = 511,700.39 : x
  2. Step 2: Convert to fraction form
    985,142.15/1,477,253.93 = 511,700.39/x
  3. Step 3: Cross multiply
    985,142.15x = 1,477,253.93 × 511,700.39
  4. Step 4: Simplify right side
    985,142.15x = 755,911,402,165.26
  5. Step 5: Solve for x
    x = 755,911,402,165.26/985,142.15
  6. Step 6: Final answer
    x = 767,312.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.