Home / 909,341.40-1,254,888.54-527,591.64

Finding the Fourth Proportional to 909,341.40, 1,254,888.54 and 527,591.64

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Solution

The fourth proportional to 909,341.40, 1,254,888.54 and 527,591.64 is: 728,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,341.40 : 1,254,888.54 = 527,591.64 : x
  2. Step 2: Convert to fraction form
    909,341.40/1,254,888.54 = 527,591.64/x
  3. Step 3: Cross multiply
    909,341.40x = 1,254,888.54 × 527,591.64
  4. Step 4: Simplify right side
    909,341.40x = 662,068,702,835.81
  5. Step 5: Solve for x
    x = 662,068,702,835.81/909,341.40
  6. Step 6: Final answer
    x = 728,074.96

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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.