Home / 717,109,859.36-989,598,167.36-438,630,926.24

Finding the Fourth Proportional to 717,109,859.36, 989,598,167.36 and 438,630,926.24

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Solution

The fourth proportional to 717,109,859.36, 989,598,167.36 and 438,630,926.24 is: 605,302,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,109,859.36 : 989,598,167.36 = 438,630,926.24 : x
  2. Step 2: Convert to fraction form
    717,109,859.36/989,598,167.36 = 438,630,926.24/x
  3. Step 3: Cross multiply
    717,109,859.36x = 989,598,167.36 × 438,630,926.24
  4. Step 4: Simplify right side
    717,109,859.36x = 434,068,360,754,523,328
  5. Step 5: Solve for x
    x = 434,068,360,754,523,328/717,109,859.36
  6. Step 6: Final answer
    x = 605,302,458.32

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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.