Home / 991,045.91-1,367,606.81-538,327.19

Finding the Fourth Proportional to 991,045.91, 1,367,606.81 and 538,327.19

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Solution

The fourth proportional to 991,045.91, 1,367,606.81 and 538,327.19 is: 742,871.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,045.91 : 1,367,606.81 = 538,327.19 : x
  2. Step 2: Convert to fraction form
    991,045.91/1,367,606.81 = 538,327.19/x
  3. Step 3: Cross multiply
    991,045.91x = 1,367,606.81 × 538,327.19
  4. Step 4: Simplify right side
    991,045.91x = 736,219,931,779.55
  5. Step 5: Solve for x
    x = 736,219,931,779.55/991,045.91
  6. Step 6: Final answer
    x = 742,871.67

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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.