Home / 1,011,528-1,395,921.60-558,861.12

Finding the Fourth Proportional to 1,011,528, 1,395,921.60 and 558,861.12

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Solution

The fourth proportional to 1,011,528, 1,395,921.60 and 558,861.12 is: 771,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,528 : 1,395,921.60 = 558,861.12 : x
  2. Step 2: Convert to fraction form
    1,011,528/1,395,921.60 = 558,861.12/x
  3. Step 3: Cross multiply
    1,011,528x = 1,395,921.60 × 558,861.12
  4. Step 4: Simplify right side
    1,011,528x = 780,126,308,808.19
  5. Step 5: Solve for x
    x = 780,126,308,808.19/1,011,528
  6. Step 6: Final answer
    x = 771,235.51

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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.