Home / 712,906,643.20-1,069,359,964.80-468,018,630.40

Finding the Fourth Proportional to 712,906,643.20, 1,069,359,964.80 and 468,018,630.40

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Solution

The fourth proportional to 712,906,643.20, 1,069,359,964.80 and 468,018,630.40 is: 702,027,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,906,643.20 : 1,069,359,964.80 = 468,018,630.40 : x
  2. Step 2: Convert to fraction form
    712,906,643.20/1,069,359,964.80 = 468,018,630.40/x
  3. Step 3: Cross multiply
    712,906,643.20x = 1,069,359,964.80 × 468,018,630.40
  4. Step 4: Simplify right side
    712,906,643.20x = 500,480,386,130,288,192
  5. Step 5: Solve for x
    x = 500,480,386,130,288,192/712,906,643.20
  6. Step 6: Final answer
    x = 702,027,945.60

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Double scale
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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.